Version 0.8.1

Changes / improvements

• Add $$PROJECT_PATH, accessible through env::PROJECT_PATH.
• Deprecate $field.get(a) and $field.set(a, b). Replaced by a.$field and a.$field = b.
• Add a.$eval($field) as a variant of a.$field.
• Add json pretty print.
• $$atomic_store and $$atomic_load takes an alignment parameter.
• $vaarg[^1] is supported. #3276
• Improve error message when a keyword is used a block parameter. #3275
• Correct tag method error messages from tagof/has_tagof to get_tag and has_tag
• Don't resume parsing when implicit module names yield invalid names.

Stdlib changes

• Add math::TAU / math::TWO_PI
• Add values::expand to turn strings containing expressions into values.
• Enhanced path::ls functionality, like searching for wildcard.
• LinkedHashMap renamed OrderedMap, LinkedHashSet renamed OrderedSet. Old names are deprecated.
• Added initial cpudetect on Linux / MacOS Aarch64.
• Enable libc::errno for FreeBSD.
• Checking filesize on Win32 now correctly reports errors. Getting the filesize now rejects directories.
• ini::parse and related takes an error_line argument to identify the line with error.
• JSON marshaling will return INVALID_NUMBER when encountering a inf or NaN for a float.
• JSON decoding will reject 1. literals.
• spawn now allows binding I/O and using different settings per pipe.
• @loop_over_ai would leak fds, deprecated and replaced by @loop_over_addresses.
• Correctly return error on native_fwrite and native_fread.
• Prevent infinite spin on io::read_fully, File.load_buffer, File.load and File.save.
• io::write_all now retries on incomplete writes.
• GrowableBitSet.max_bit_set added.
• Added UnboundedChannel.
• BufferedChannel and UnbufferedChannel gets non-blocking push/pop.
• FixedThreadPool and ThreadPool deprecated.

Fixes

• @volatile_store on arrays were sometimes incorrectly lowered.
• NPOT vectors as associated variables were incorrectly lowered on load. #3228
• .get_tag and .has_tag did not work properly for globals and locals.
• Vectors stored in unions lowered incorrectly causing an assert #3234
• Segmentation fault during library fetch when the "dependencies" key is missing in project.json. #3233
• .tags would crash if no attribute with arguments were present.
• Rect.merge_point would sometimes result in a point outside of the rect.
• Possible array overflow in SortedMap.
• Possible memory overwrite in BackingArenaAllocator on realloc.
• Realloc could cause data corruption in DynamicArenaAllocator.
• OnStackAllocator would not correctly clear memory on calloc.
• Vmem temp allocator would not correctly free all vmem on destroy.
• Wasm memory allocation could overallocate unnecessarily.
• VirtualMemory contract off by one error.
• CPU detect of leaf7 on x86 incorrect.
• Fixed project benchmark target parsing. #3237
• Incorrect type on UIntLE and UIntBE.
• CVaList would behave different incorrectly for types larger than 8 bytes on some platforms.
• UTF32 BOM detection was broken.
• Sort from DString.less was inconsistent.
• Fix io::skip using 'read' vs 'read_byte', causing an error.
• Slice2d.slice incorrectly handled slices with x/y offset and 0/negative length together.
• String.to_integer incorrectly accepted some invalid characters for hex.
• Removed broken StringIterator.get.
• Fix to refcount behaviour, preventing issue on release.
• File.close should always invalidate the pointer on close, even on failures.
• Overlong conversions to unicode for %c at boundaries.
• Do not rely on implicit allocation for getcwd.
• Skipping symlinks wasn't properly implemented for Win32.
• Reverse indexing a value that overloads indexing would index an anonymous copy of the value.
• Fix case where member.set would hit an assert.
• Same type casts would not become rvalues.
• Hex decoding would leak memory on failure.
• Codepage.by_name would not use normalized name.
• @return? bar! didn't work if the identifier matched a macro.
• Copying compile time strings during compile time folding with strings containing 0 would sometimes get truncated. #3267
• Pem parsing did not correctly handle empty body, nor when the first line was too short.
• Additional pem parsing bugs on malformed data handled.
• Compiler would crash when getting the kind, qname, or alignment of an untypedlist.
• untypedlist incorrectly had size property.
• JSON handling of UTF16 surrogate pairs fixed.
• base32, base64 and codepage would leak memory on encode/decode errors.
• Indexing into a type with a $reflect value would sometimes cause a crash.
• Using a faultdef hidden behind @if would cause a crash.
• Taking the type of a macro method would cause a crash.
• Cap array size to avoid overflow when making multidimensional arrays that are too large.
• DynamicArenaAllocator would incorrectly handle some reuse cases.
• __atomic_compare_exchange had an incorrect implementation.
• channel::create_unbuffered would not correctly zero out memory, potentially yielding unpredictable result.
• lock_timeout on Posix would sleep the entire sleep before retrying, and it would fail if it managed to sleep.
• stack_size setting for threads was ignored on Posix.
• Setting thread priority on Win32 was off by one.
• Non-power-of-two-sized member of @bigendian bitstruct backed by char array wasn't working #3283.
• Binary bitwise operations were not considered simple.
• $expand was incorrectly made generic in generic modules. #3274
• Mangle lambdas in macros without @ to ensure they work correctly on elf #3217.
• DString.replace("", "X"); would crash.
• DString.read_from_stream would not return the correct length when available was not supported by the stream.
• @str_camelcase would yield same result as @str_pascalcase. #3287
• conv::utf8to32 would not zero terminate in when the zero would be at the end of the buffer.
• char16_to_utf8_unsafe would not load low byte unaligned when required.
• Not all invalid UTF8 was detected.
• UTF16 length detection was incorrect for utf16 with surrogate pairs.
• Initializing a variable which has the type of an optional struct using a const value would fail codegen. #3288
• Parsing a malformed hex float would not correctly get reported.
• Parsing an integer with trailing space would incorrectly be reported as an error.
• String.escape used the incorrect default for stripping quotes.
• mem::equals would not correctly compare slices of with element size > 1.
• AsciiCharset.contains incorrectly handled char > 127.
• Reuse of recently freed DynamicArenaAllocator allocations failed.
• Crash in codegen in some cases when RHS of a && or || was unreachable at lowering.
• Visibility modifiers were incorrectly allowed on enum/constdef members.
• Datetime format could not handle negative offsets with non-zero minutes.
• NormalDist.random could occasionally return inf.
• Url parser would fail on foo@bar.com.
• Url parser would drop the port on http://[::1]:8080.
• Ipv6 classification - is_link_local etc, was incorrect
• env::get/set_var for Win32 would appear to fail when succeeding.
• env::get_var had a race condition on Win32.
• process::run_capture_stdout would remove the last character, even when it wasn't \n.
• Add missing __powisf2 to compiler_rt.
• // would count newlines twice when parsing JSONC.
• Path::for_posix(".a/..") was not parsed correctly.
• SortedMap.clear and SortedMap.free would work incorrectly on map initialized with ONHEAP.
• GrowableBitSet would yield the wrong length.
• GrowableBitSet would not work correctly on backing types bigger than uint.
• DString.replace would not work correctly in some cases.
• ByteWriter.ensure_capacity did realloc unnecessarily when the data exactly matched capacity.
• DString.equals used int rather than sz for len comparison.
• DString.replace_char would crash on empty DString.
• io::read_varint and io::write_varint: handling for signed integers were broken.
• io::write_tiny_bytearray and io::write_short_bytearray could have incomplete writes.
• Splatting a partially raw array into a macro would miscompile. #3302
• Getting the tag for an enum parameter caused a crash. #3307
• Json marshalling of floats would lose precision.
• Crash when initializing a bitstruct from an untyped list.
• Shifting a vector by a non-numeric type would cause a crash rather than a compiler error.
• Recursive macros were not detected when going by way of a lambda.
• Compile time concatenation with an empty slice was lacking checks, causing a compiler crash.
• Fix zip slip vulnerability.
• Fixed issues with Object.to_value.
• DString.len was incorrectly marked @dynamic.
• Qoi decoder wasn't correctly signaling all invalid data.
• Casting a constant string to a float vector was buggy, causing a compiler crash.
• Codepage detection could fail values after the last element.
• Xml parsing could leak memory if root was preceeded by Pi nodes.
• DateTime.diff_years would not handle leap years properly.
• Deque.free would not reset the capacity, making it break if later reused.
• Formatter would overflow in cases like %2147483648d.
• Distributions would drop convergence control setting on recursion.
• In some rare cases available() could leave the stream in an unexpected state.

latest-prerelease-20260610-1810

latest-prerelease-tag

- `FixedThreadPool` and `ThreadPool` deprecated. Bump version.

Version 0.8.0_3

Changes / improvements

• Removed "old-enums, old-slice-copy and old-compact-eq" feature flags.
• Removed deprecated $evaltype.
• Removed all deprecated (as of 0.7.11) types and functions from the stdlib.
• Removed deprecated iXX and uXX suffixes.
• Removed deprecated Enum.lookup.
• Removed deprecated ? as suffix operator in the expression io::EOF?.
• Removed deprecated module foo {Type} generic syntax.
• Distinct types now defaults to be "structlike"
• Removed @structlike attribute.
• Removed deprecated @extern attribute.
• : in contracts before description is now mandatory.
• Removed deprecated Enum.associated (use Enum::members).
• Removed deprecated Enum.elements (use Enum::len).
• Removed deprecated foo_function.params (use $reflect(foo_function).params).
• Removed deprecated $is_const.
• Removed deprecated $assignable.
• Enums now no longer directly support + and - – use ordinals instead.
• For enums, using ++ and -- will step through enums with implicit wrap-around.
• Rename isz -> sz.
• Make $sizeof, $alignof and all similar functions return sz instead of usz.
• Align literal types with C semantics.
• Use value promotion instead of signedness promotion to int. So that small unsigned types promote to int, not uint.
• Add a @mustinit attribute to enforce zero-initialization of a type. #3094
• Improve error message when keyword is used instead of an expression. #3088
• Add --warn-recursivecontracts.
• Mutex.destroy and friends no longer return optionals.
• Remove @operator(!=) overload.
• Add @operator(<) overload, enabling type comparison overloads.
• Generic inference can now look through pointer.
• Enums now implicitly convert to their ordinal when used as indices.
• Enums can no longer declare themselves inline.
• Nested generics allowed inside generic functions/methods.
• a = ... parameters may be shadowed if not defined.
• $eval can now be used with named parameters, e.g. foo($eval("arg"): 2) #3090
• Type properties are now accessed using :: and the "of" suffix, removed: int.sizeof -> int::size
• Added $reflect with properties name, cname, qname, offset, alignment, size.
• Added @kindof, @alignof and @sizeof macros.
• Removed $nameof, $extnameof, $qnameof, $offsetof, $alignof, $kindof, $sizeof.
• .nameof is changed to .description on fault and enum types.
• Type property is_eq is renamed has_equals.
• Type function tagof is renamed get_tag.
• Add untypedlist as a usable type #2647.
• ?? and ?: has new precedence and binds tighter than + and -
• Added the tags property for types and $reflect.
• Allow taking the type of an interface method.
• Add $expand compile time function to convert strings to code.
• Constdef now infers through unary negations.
• Only used libraries are scanned for dependencies. #3144
• $vaconst, $vaexpr and $vatype removed.
• Improve error message on unsupported typeid runtime access at runtime. #3170
• Added support for Emscripten.
• Replace $vacount by $vaarg.len, replace $vasplat by ...$vaarg.
• $vaarg behaves as $vaexpr.
• Added docgen command to generate documentation.
• Added jmpabs x86 CPU feature.
• Implicit unsigned <-> signed integer conversions removed.
• Added C3 Compiler setup installer for Windows
• alias Foo = int::typeid now works.
• $typeof => $Typeof, $typefrom => $Typefrom.

Stdlib changes

• Add List.remove_unordered_at.
• PanicFn now takes an int for row.
• Add std::collections::Deque.
• Add compare_to and compare_to_ignore_case to String. #3096
• Add SortedMap based on skip lists.
• Add OneShotChannel to std::thread::channel for single-send/single-receive thread synchronization.
• BufferedChannel and UnbufferedChannel are now pointers, create using create_unbuffered and create_buffered
• RingBuffer now conforms to foreach and adds additional functions.
• Ini parser and encoder.
• Updated ref::new argument order.
• Support setting thread stack size.
• Support setting thread priority.
• Support syscall on RISCV.
• Make DString.append_repeat polymorphic adding append_string_repeat and append_char_repeat.
• Add DString.append_inline for optimized uses.
• Ordering of object::new_* arguments are now "allocator first".
• Add remove_unordered_at to FixedList.
• Changed json to support two flavors of JSON: JSON and JSONC.
• Changed json API: parse -> load, parse_string -> parse.
• conv::detect_bom, convert utf16/utf32 from bytes with byteswap / unaligned data.
• Mergesort added.
• set_cursor is renamed seek, and the old seek is removed.
• std::math name changes: HALF_PI => PI_2, PI_4 => QUARTER_PI, DIV_PI => INV_PI etc, cosec => csc, cotan => cot, muladd => mad
• std::time name changes: diff_hour => diff_hours. DateTime.set_date => DateTime.set, datetime::from_date_* => datetime::at_*
• std::hash method name convention changes: updatec / update_char => update_byte.
• std::string name changes: strip => strip_prefix, strip_end => strip_suffix.
• std::collections::object added Object.to_value to convert from an object to a value.
• std::encoding::xml added for XML parsing and serialization.
• Fix Path.append separator not honoring the specified environment.
• Add multi part and extension support to Path.append.
• The Path API now is split into PathPosix and PathWin, Path is implicitly castable to String and loses the str_view() method. Use path::tnew instead of path::temp for a temporary path.

Fixes

• Slice comparison lowering would not work correctly in macros in some cases. #3095
• Attributes @allow_deprecated, @constinit, @noalias, @nostrip, and @optional would erroneously accept parameters. #3098
• Fix pipe handle leaks across concurrent process spawns #10067.
• $$trap was incorrectly marked noreturn.
• Recursive inclusion of contracts was not detected.
• \r was not filtered when piping a source file from stdin.
• SHA-3 and Keccak contexts are now explicitly @mustinit structures. #3110
• UnbufferedChannel would deadlock on multiple producers.
• Don't override sigaltstack when running with --sanitize=address. #3115
• Binary search broken for some supported functions.
• Fix bug casting (void*[<3>])x.
• Compiler crash compiling a switch with a constant case range overlapping a constant case value. #3127
• Incorrect handling of overaligned struct fields #3136
• EnumSet with more than 128 entries was broken.
• Handle underflow in zip.
• Bugs in check for name suggestions on name mismatch.
• Fix bug where only one ensure would not be inlined correctly. #3162
• Incorrect error message when casting to non-existent enum.
• Macro $Type = ... would not work correctly with $defined
• Fix enum value handling in Object (std::collections::object) to conform with changes in enums.
• Compiler assert in certain cases with ?? and void returns. #3168
• Bug in compiler-rt for i128 shift.
• LinkedBlockingQueue.push_timeout did not work correctly.
• Splat into vaarg macro, where vaarg is not used #2782.
• Comparison with floats had incorrect codegen, leading to incorrect results for NaN #3175.
• Zeroing out simd vectors in a struct could in some cases lead to incorrect lowering #3179.
• Incorrect lowering when returning a struct to an optional value on Win64 in some cases #3180.
• Fix bug where a method is considered doubly generic if declared in a generic module for a generic type. #3176
• Fix exp10 on platforms without exp10 as an LLVM builtin.
• LLVM 23 compatibility: map Os/Oz to O2 pass pipeline, fix returnaddress intrinsic signature, add optsize/minsize function attributes.
• Warning for ignored visibility modifiers was not emitted for macro methods #3071
• while (String? x = foo()!) was accidentally allowed causing a lowering error.
• Crash casting uint to bitstruct inside struct field assignment #3187
• Vec2/Vec3 transform missed matrix translation.
• Matrix rotation ignored matrix itself.
• Fix BigInt shr, to_format, and others.
• Fix ends in TDist.quantile, FDist.pdf, ChiSquaredDist.pdf
• Fix to easing expo_in and bounce_inout.
• deque with shrinking a zero sized list caused infinite loop.
• Printing an enummap yielded the wrong character count.
• Incorrect contract in FixedList allowed insert out of range.
• Fix double-free in InterfaceList.
• Object.set_at was incorrect.
• Bitstruct with backing char[n] would occasionally be incorrectly stored.
• fmuladd lowering crashes on a + -(b * c) with fastmath.
• Constant folding -30 % -7 would incorrectly yield "2".
• Parsing << in asm would not be correctly handled.
• Incorrect lowering for float[<3>] when placed aligned in a struct.

Version 0.8.0_2

Changes / improvements

• Removed "old-enums, old-slice-copy and old-compact-eq" feature flags.
• Removed deprecated $evaltype.
• Removed all deprecated (as of 0.7.11) types and functions from the stdlib.
• Removed deprecated iXX and uXX suffixes.
• Removed deprecated Enum.lookup.
• Removed deprecated ? as suffix operator in the expression io::EOF?.
• Removed deprecated module foo {Type} generic syntax.
• Distinct types now defaults to be "structlike"
• Removed @structlike attribute.
• Removed deprecated @extern attribute.
• : in contracts before description is now mandatory.
• Removed deprecated Enum.associated (use Enum::members).
• Removed deprecated Enum.elements (use Enum::len).
• Removed deprecated foo_function.params (use $reflect(foo_function).params).
• Removed deprecated $is_const.
• Removed deprecated $assignable.
• Enums now no longer directly support + and - – use ordinals instead.
• For enums, using ++ and -- will step through enums with implicit wrap-around.
• Rename isz -> sz.
• Make $sizeof, $alignof and all similar functions return sz instead of usz.
• Align literal types with C semantics.
• Use value promotion instead of signedness promotion to int. So that small unsigned types promote to int, not uint.
• Add a @mustinit attribute to enforce zero-initialization of a type. #3094
• Improve error message when keyword is used instead of an expression. #3088
• Add --warn-recursivecontracts.
• Mutex.destroy and friends no longer return optionals.
• Remove @operator(!=) overload.
• Add @operator(<) overload, enabling type comparison overloads.
• Generic inference can now look through pointer.
• Enums now implicitly convert to their ordinal when used as indices.
• Enums can no longer declare themselves inline.
• Nested generics allowed inside generic functions/methods.
• a = ... parameters may be shadowed if not defined.
• $eval can now be used with named parameters, e.g. foo($eval("arg"): 2) #3090
• Type properties are now accessed using :: and the "of" suffix, removed: int.sizeof -> int::size
• Added $reflect with properties name, cname, qname, offset, alignment, size.
• Added @kindof, @alignof and @sizeof macros.
• Removed $nameof, $extnameof, $qnameof, $offsetof, $alignof, $kindof, $sizeof.
• .nameof is changed to .description on fault and enum types.
• Type property is_eq is renamed has_equals.
• Type function tagof is renamed get_tag.
• Add untypedlist as a usable type #2647.
• ?? and ?: has new precedence and binds tighter than + and -
• Added the tags property for types and $reflect.
• Allow taking the type of an interface method.
• Add $expand compile time function to convert strings to code.
• Constdef now infers through unary negations.
• Only used libraries are scanned for dependencies. #3144
• $vaconst, $vaexpr and $vatype removed.
• Improve error message on unsupported typeid runtime access at runtime. #3170
• Added support for Emscripten.
• Replace $vacount by $vaarg.len, replace $vasplat by ...$vaarg.
• $vaarg behaves as $vaexpr.
• Added docgen command to generate documentation.
• Added jmpabs x86 CPU feature.
• Implicit unsigned <-> signed integer conversions removed.
• Added C3 Compiler setup installer for Windows
• alias Foo = int::typeid now works.
• $typeof => $Typeof, $typefrom => $Typefrom.

Stdlib changes

• Add List.remove_unordered_at.
• PanicFn now takes an int for row.
• Add std::collections::Deque.
• Add compare_to and compare_to_ignore_case to String. #3096
• Add SortedMap based on skip lists.
• Add OneShotChannel to std::thread::channel for single-send/single-receive thread synchronization.
• BufferedChannel and UnbufferedChannel are now pointers, create using create_unbuffered and create_buffered
• RingBuffer now conforms to foreach and adds additional functions.
• Ini parser and encoder.
• Updated ref::new argument order.
• Support setting thread stack size.
• Support setting thread priority.
• Support syscall on RISCV.
• Make DString.append_repeat polymorphic adding append_string_repeat and append_char_repeat.
• Add DString.append_inline for optimized uses.
• Ordering of object::new_* arguments are now "allocator first".
• Add remove_unordered_at to FixedList.
• Changed json to support two flavors of JSON: JSON and JSONC.
• Changed json API: parse -> load, parse_string -> parse.
• conv::detect_bom, convert utf16/utf32 from bytes with byteswap / unaligned data.
• Mergesort added.
• set_cursor is renamed seek, and the old seek is removed.
• std::math name changes: HALF_PI => PI_2, PI_4 => QUARTER_PI, DIV_PI => INV_PI etc, cosec => csc, cotan => cot, muladd => mad
• std::time name changes: diff_hour => diff_hours. DateTime.set_date => DateTime.set, datetime::from_date_* => datetime::at_*
• std::hash method name convention changes: updatec / update_char => update_byte.
• std::string name changes: strip => strip_prefix, strip_end => strip_suffix.
• std::collections::object added Object.to_value to convert from an object to a value.
• std::encoding::xml added for XML parsing and serialization.
• Fix Path.append separator not honoring the specified environment.
• Add multi part and extension support to Path.append.
• The Path API now is split into PathPosix and PathWin, Path is implicitly castable to String and loses the str_view() method. Use path::tnew instead of path::temp for a temporary path.

Fixes

• Slice comparison lowering would not work correctly in macros in some cases. #3095
• Attributes @allow_deprecated, @constinit, @noalias, @nostrip, and @optional would erroneously accept parameters. #3098
• Fix pipe handle leaks across concurrent process spawns #10067.
• $$trap was incorrectly marked noreturn.
• Recursive inclusion of contracts was not detected.
• \r was not filtered when piping a source file from stdin.
• SHA-3 and Keccak contexts are now explicitly @mustinit structures. #3110
• UnbufferedChannel would deadlock on multiple producers.
• Don't override sigaltstack when running with --sanitize=address. #3115
• Binary search broken for some supported functions.
• Fix bug casting (void*[<3>])x.
• Compiler crash compiling a switch with a constant case range overlapping a constant case value. #3127
• Incorrect handling of overaligned struct fields #3136
• EnumSet with more than 128 entries was broken.
• Handle underflow in zip.
• Bugs in check for name suggestions on name mismatch.
• Fix bug where only one ensure would not be inlined correctly. #3162
• Incorrect error message when casting to non-existent enum.
• Macro $Type = ... would not work correctly with $defined
• Fix enum value handling in Object (std::collections::object) to conform with changes in enums.
• Compiler assert in certain cases with ?? and void returns. #3168
• Bug in compiler-rt for i128 shift.
• LinkedBlockingQueue.push_timeout did not work correctly.
• Splat into vaarg macro, where vaarg is not used #2782.
• Comparison with floats had incorrect codegen, leading to incorrect results for NaN #3175.
• Zeroing out simd vectors in a struct could in some cases lead to incorrect lowering #3179.
• Incorrect lowering when returning a struct to an optional value on Win64 in some cases #3180.
• Fix bug where a method is considered doubly generic if declared in a generic module for a generic type. #3176
• Fix exp10 on platforms without exp10 as an LLVM builtin.
• LLVM 23 compatibility: map Os/Oz to O2 pass pipeline, fix returnaddress intrinsic signature, add optsize/minsize function attributes.
• Warning for ignored visibility modifiers was not emitted for macro methods #3071
• while (String? x = foo()!) was accidentally allowed causing a lowering error.
• Crash casting uint to bitstruct inside struct field assignment #3187
• Vec2/Vec3 transform missed matrix translation.
• Matrix rotation ignored matrix itself.
• Fix BigInt shr, to_format, and others.
• Fix ends in TDist.quantile, FDist.pdf, ChiSquaredDist.pdf
• Fix to easing expo_in and bounce_inout.
• deque with shrinking a zero sized list caused infinite loop.
• Printing an enummap yielded the wrong character count.
• Incorrect contract in FixedList allowed insert out of range.
• Fix double-free in InterfaceList.
• Object.set_at was incorrect.
• Bitstruct with backing char[n] would occasionally be incorrectly stored.
• fmuladd lowering crashes on a + -(b * c) with fastmath.
• Constant folding -30 % -7 would incorrectly yield "2".
• Parsing << in asm would not be correctly handled.
• Incorrect lowering for float[<3>] when placed aligned in a struct.

Version 0.8.0_1

Changes / improvements

• Removed "old-enums, old-slice-copy and old-compact-eq" feature flags.
• Removed deprecated $evaltype.
• Removed all deprecated (as of 0.7.11) types and functions from the stdlib.
• Removed deprecated iXX and uXX suffixes.
• Removed deprecated Enum.lookup.
• Removed deprecated ? as suffix operator in the expression io::EOF?.
• Removed deprecated module foo {Type} generic syntax.
• Distinct types now defaults to be "structlike"
• Removed @structlike attribute.
• Removed deprecated @extern attribute.
• : in contracts before description is now mandatory.
• Removed deprecated Enum.associated (use Enum::members).
• Removed deprecated Enum.elements (use Enum::len).
• Removed deprecated foo_function.params (use $reflect(foo_function).params).
• Removed deprecated $is_const.
• Removed deprecated $assignable.
• Enums now no longer directly support + and - – use ordinals instead.
• For enums, using ++ and -- will step through enums with implicit wrap-around.
• Rename isz -> sz.
• Make $sizeof, $alignof and all similar functions return sz instead of usz.
• Align literal types with C semantics.
• Use value promotion instead of signedness promotion to int. So that small unsigned types promote to int, not uint.
• Add a @mustinit attribute to enforce zero-initialization of a type. #3094
• Improve error message when keyword is used instead of an expression. #3088
• Add --warn-recursivecontracts.
• Mutex.destroy and friends no longer return optionals.
• Remove @operator(!=) overload.
• Add @operator(<) overload, enabling type comparison overloads.
• Generic inference can now look through pointer.
• Enums now implicitly convert to their ordinal when used as indices.
• Enums can no longer declare themselves inline.
• Nested generics allowed inside generic functions/methods.
• a = ... parameters may be shadowed if not defined.
• $eval can now be used with named parameters, e.g. foo($eval("arg"): 2) #3090
• Type properties are now accessed using :: and the "of" suffix, removed: int.sizeof -> int::size
• Added $reflect with properties name, cname, qname, offset, alignment, size.
• Added @kindof, @alignof and @sizeof macros.
• Removed $nameof, $extnameof, $qnameof, $offsetof, $alignof, $kindof, $sizeof.
• .nameof is changed to .description on fault and enum types.
• Type property is_eq is renamed has_equals.
• Type function tagof is renamed get_tag.
• Add untypedlist as a usable type #2647.
• ?? and ?: has new precedence and binds tighter than + and -
• Added the tags property for types and $reflect.
• Allow taking the type of an interface method.
• Add $expand compile time function to convert strings to code.
• Constdef now infers through unary negations.
• Only used libraries are scanned for dependencies. #3144
• $vaconst, $vaexpr and $vatype removed.
• Improve error message on unsupported typeid runtime access at runtime. #3170
• Added support for Emscripten.
• Replace $vacount by $vaarg.len, replace $vasplat by ...$vaarg.
• $vaarg behaves as $vaexpr.
• Added docgen command to generate documentation.
• Added jmpabs x86 CPU feature.
• Implicit unsigned <-> signed integer conversions removed.
• Added C3 Compiler setup installer for Windows
• alias Foo = int::typeid now works.
• $typeof => $Typeof, $typefrom => $Typefrom.

Stdlib changes

• Add List.remove_unordered_at.
• PanicFn now takes an int for row.
• Add std::collections::Deque.
• Add compare_to and compare_to_ignore_case to String. #3096
• Add SortedMap based on skip lists.
• Add OneShotChannel to std::thread::channel for single-send/single-receive thread synchronization.
• BufferedChannel and UnbufferedChannel are now pointers, create using create_unbuffered and create_buffered
• RingBuffer now conforms to foreach and adds additional functions.
• Ini parser and encoder.
• Updated ref::new argument order.
• Support setting thread stack size.
• Support setting thread priority.
• Support syscall on RISCV.
• Make DString.append_repeat polymorphic adding append_string_repeat and append_char_repeat.
• Add DString.append_inline for optimized uses.
• Ordering of object::new_* arguments are now "allocator first".
• Add remove_unordered_at to FixedList.
• Changed json to support two flavors of JSON: JSON and JSONC.
• Changed json API: parse -> load, parse_string -> parse.
• conv::detect_bom, convert utf16/utf32 from bytes with byteswap / unaligned data.
• Mergesort added.
• set_cursor is renamed seek, and the old seek is removed.
• std::math name changes: HALF_PI => PI_2, PI_4 => QUARTER_PI, DIV_PI => INV_PI etc, cosec => csc, cotan => cot, muladd => mad
• std::time name changes: diff_hour => diff_hours. DateTime.set_date => DateTime.set, datetime::from_date_* => datetime::at_*
• std::hash method name convention changes: updatec / update_char => update_byte.
• std::string name changes: strip => strip_prefix, strip_end => strip_suffix.
• std::collections::object added Object.to_value to convert from an object to a value.
• std::encoding::xml added for XML parsing and serialization.
• Fix Path.append separator not honoring the specified environment.
• Add multi part and extension support to Path.append.
• The Path API now is split into PathPosix and PathWin, Path is implicitly castable to String and loses the str_view() method. Use path::tnew instead of path::temp for a temporary path.

Fixes

• Slice comparison lowering would not work correctly in macros in some cases. #3095
• Attributes @allow_deprecated, @constinit, @noalias, @nostrip, and @optional would erroneously accept parameters. #3098
• Fix pipe handle leaks across concurrent process spawns #10067.
• $$trap was incorrectly marked noreturn.
• Recursive inclusion of contracts was not detected.
• \r was not filtered when piping a source file from stdin.
• SHA-3 and Keccak contexts are now explicitly @mustinit structures. #3110
• UnbufferedChannel would deadlock on multiple producers.
• Don't override sigaltstack when running with --sanitize=address. #3115
• Binary search broken for some supported functions.
• Fix bug casting (void*[<3>])x.
• Compiler crash compiling a switch with a constant case range overlapping a constant case value. #3127
• Incorrect handling of overaligned struct fields #3136
• EnumSet with more than 128 entries was broken.
• Handle underflow in zip.
• Bugs in check for name suggestions on name mismatch.
• Fix bug where only one ensure would not be inlined correctly. #3162
• Incorrect error message when casting to non-existent enum.
• Macro $Type = ... would not work correctly with $defined
• Fix enum value handling in Object (std::collections::object) to conform with changes in enums.
• Compiler assert in certain cases with ?? and void returns. #3168
• Bug in compiler-rt for i128 shift.
• LinkedBlockingQueue.push_timeout did not work correctly.
• Splat into vaarg macro, where vaarg is not used #2782.
• Comparison with floats had incorrect codegen, leading to incorrect results for NaN #3175.
• Zeroing out simd vectors in a struct could in some cases lead to incorrect lowering #3179.
• Incorrect lowering when returning a struct to an optional value on Win64 in some cases #3180.
• Fix bug where a method is considered doubly generic if declared in a generic module for a generic type. #3176
• Fix exp10 on platforms without exp10 as an LLVM builtin.
• LLVM 23 compatibility: map Os/Oz to O2 pass pipeline, fix returnaddress intrinsic signature, add optsize/minsize function attributes.
• Warning for ignored visibility modifiers was not emitted for macro methods #3071
• while (String? x = foo()!) was accidentally allowed causing a lowering error.
• Crash casting uint to bitstruct inside struct field assignment #3187
• Vec2/Vec3 transform missed matrix translation.
• Matrix rotation ignored matrix itself.
• Fix BigInt shr, to_format, and others.
• Fix ends in TDist.quantile, FDist.pdf, ChiSquaredDist.pdf
• Fix to easing expo_in and bounce_inout.
• deque with shrinking a zero sized list caused infinite loop.
• Printing an enummap yielded the wrong character count.
• Incorrect contract in FixedList allowed insert out of range.
• Fix double-free in InterfaceList.
• Object.set_at was incorrect.
• Bitstruct with backing char[n] would occasionally be incorrectly stored.
• fmuladd lowering crashes on a + -(b * c) with fastmath.
• Constant folding -30 % -7 would incorrectly yield "2".
• Parsing << in asm would not be correctly handled.
• Incorrect lowering for float[<3>] when placed aligned in a struct.

Version 0.8.0

Changes / improvements

• Removed "old-enums, old-slice-copy and old-compact-eq" feature flags.
• Removed deprecated $evaltype.
• Removed all deprecated (as of 0.7.11) types and functions from the stdlib.
• Removed deprecated iXX and uXX suffixes.
• Removed deprecated Enum.lookup.
• Removed deprecated ? as suffix operator in the expression io::EOF?.
• Removed deprecated module foo {Type} generic syntax.
• Distinct types now defaults to be "structlike"
• Removed @structlike attribute.
• Removed deprecated @extern attribute.
• : in contracts before description is now mandatory.
• Removed deprecated Enum.associated (use Enum.membersof).
• Removed deprecated Enum.elements (use Enum.len).
• Removed deprecated foo_function.params (use foo_function.paramsof).
• Removed deprecated $is_const.
• Removed deprecated $assignable.
• Enums now no longer directly support + and - – use ordinals instead.
• For enums, using ++ and -- will step through enums with implicit wrap-around.
• Rename isz -> sz.
• Make $sizeof, $alignof and all similar functions return sz instead of usz.
• Align literal types with C semantics.
• Use value promotion instead of signedness promotion to int. So that small unsigned types promote to int, not uint.
• Add a @mustinit attribute to enforce zero-initialization of a type. #3094
• Improve error message when keyword is used instead of an expression. #3088
• Add --warn-recursivecontracts.
• Mutex.destroy and friends no longer return optionals.
• Remove @operator(!=) overload.
• Add @operator(<) overload, enabling type comparison overloads.
• Generic inference can now look through pointer.
• Enums now implicitly convert to their ordinal when used as indices.
• Enums can no longer declare themselves inline.
• Nested generics allowed inside generic functions/methods.
• a = ... parameters may be shadowed if not defined.
• $eval can now be used with named parameters, e.g. foo($eval("arg"): 2) #3090
• Type properties are now accessed using :: and the "of" suffix, removed: int.sizeof -> int::size
• Added $reflect with properties name, cname, qname, offset, alignment, size.
• Added @kindof, @alignof and @sizeof macros.
• Removed $nameof, $extnameof, $qnameof, $offsetof, $alignof, $kindof, $sizeof.
• .nameof is changed to .description on fault and enum types.
• Type property is_eq is renamed has_equals.
• Type function tagof is renamed get_tag.
• Add untypedlist as a usable type #2647.
• ?? and ?: has new precedence and binds tighter than + and -
• Added the tags property for types and $reflect.
• Allow taking the type of an interface method.
• Add $expand compile time function to convert strings to code.
• Constdef now infers through unary negations.
• Only used libraries are scanned for dependencies. #3144
• $vaconst, $vaexpr and $vatype removed.
• Improve error message on unsupported typeid runtime access at runtime. #3170
• Added support for Emscripten.
• Replace $vacount by $vaarg.len, replace $vasplat by ...$vaarg.
• $vaarg behaves as $vaexpr.
• Added docgen command to generate documentation.
• Added jmpabs x86 CPU feature.
• Implicit unsigned <-> signed integer conversions removed.
• Added C3 Compiler setup installer for Windows
• alias Foo = int::typeid now works.
• $typeof => $Typeof, $typefrom => $Typefrom.

Stdlib changes

• Add List.remove_unordered_at.
• PanicFn now takes an int for row.
• Add std::collections::Deque.
• Add compare_to and compare_to_ignore_case to String. #3096
• Add SortedMap based on skip lists.
• Add OneShotChannel to std::thread::channel for single-send/single-receive thread synchronization.
• BufferedChannel and UnbufferedChannel are now pointers, create using create_unbuffered and create_buffered
• RingBuffer now conforms to foreach and adds additional functions.
• Ini parser and encoder.
• Updated ref::new argument order.
• Support setting thread stack size.
• Support setting thread priority.
• Support syscall on RISCV.
• Make DString.append_repeat polymorphic adding append_string_repeat and append_char_repeat.
• Add DString.append_inline for optimized uses.
• Ordering of object::new_* arguments are now "allocator first".
• Add remove_unordered_at to FixedList.
• Changed json to support two flavors of JSON: JSON and JSONC.
• Changed json API: parse -> load, parse_string -> parse.
• conv::detect_bom, convert utf16/utf32 from bytes with byteswap / unaligned data.
• Mergesort added.
• set_cursor is renamed seek, and the old seek is removed.
• std::math name changes: PI_2 => HALF_PI, PI_4 => QUARTER_PI, DIV_PI => INV_PI etc, cosec => csc, cotan => cot, muladd => mad
• std::time name changes: diff_hour => diff_hours. DateTime.set_date => DateTime.set, datetime::from_date_* => datetime::at_*
• std::hash method name convention changes: updatec / update_char => update_byte.
• std::string name changes: strip => strip_prefix, strip_end => strip_suffix.
• std::collections::object added Object.to_value to convert from an object to a value.
• std::encoding::xml added for XML parsing and serialization.
• Fix Path.append separator not honoring the specified environment.
• Add multi part and extension support to Path.append.
• The Path API now is split into PathPosix and PathWin, Path is implicitly castable to String and loses the str_view() method. Use path::tnew instead of path::temp for a temporary path.

Fixes

• Slice comparison lowering would not work correctly in macros in some cases. #3095
• Attributes @allow_deprecated, @constinit, @noalias, @nostrip, and @optional would erroneously accept parameters. #3098
• Fix pipe handle leaks across concurrent process spawns #10067.
• $$trap was incorrectly marked noreturn.
• Recursive inclusion of contracts was not detected.
• \r was not filtered when piping a source file from stdin.
• SHA-3 and Keccak contexts are now explicitly @mustinit structures. #3110
• UnbufferedChannel would deadlock on multiple producers.
• Don't override sigaltstack when running with --sanitize=address. #3115
• Binary search broken for some supported functions.
• Fix bug casting (void*[<3>])x.
• Compiler crash compiling a switch with a constant case range overlapping a constant case value. #3127
• Incorrect handling of overaligned struct fields #3136
• EnumSet with more than 128 entries was broken.
• Handle underflow in zip.
• Bugs in check for name suggestions on name mismatch.
• Fix bug where only one ensure would not be inlined correctly. #3162
• Incorrect error message when casting to non-existent enum.
• Macro $Type = ... would not work correctly with $defined
• Fix enum value handling in Object (std::collections::object) to conform with changes in enums.
• Compiler assert in certain cases with ?? and void returns. #3168
• Bug in compiler-rt for i128 shift.
• LinkedBlockingQueue.push_timeout did not work correctly.
• Splat into vaarg macro, where vaarg is not used #2782.
• Comparison with floats had incorrect codegen, leading to incorrect results for NaN #3175.
• Zeroing out simd vectors in a struct could in some cases lead to incorrect lowering #3179.
• Incorrect lowering when returning a struct to an optional value on Win64 in some cases #3180.
• Fix bug where a method is considered doubly generic if declared in a generic module for a generic type. #3176
• Fix exp10 on platforms without exp10 as an LLVM builtin.
• LLVM 23 compatibility: map Os/Oz to O2 pass pipeline, fix returnaddress intrinsic signature, add optsize/minsize function attributes.
• Warning for ignored visibility modifiers was not emitted for macro methods #3071
• while (String? x = foo()!) was accidentally allowed causing a lowering error.
• Crash casting uint to bitstruct inside struct field assignment #3187
• Vec2/Vec3 transform missed matrix translation.
• Matrix rotation ignored matrix itself.
• Fix BigInt shr, to_format, and others.
• Fix ends in TDist.quantile, FDist.pdf, ChiSquaredDist.pdf
• Fix to easing expo_in and bounce_inout.
• deque with shrinking a zero sized list caused infinite loop.
• Printing an enummap yielded the wrong character count.
• Incorrect contract in FixedList allowed insert out of range.
• Fix double-free in InterfaceList.
• Object.set_at was incorrect.
• Bitstruct with backing char[n] would occasionally be incorrectly stored.
• fmuladd lowering crashes on a + -(b * c) with fastmath.
• Constant folding -30 % -7 would incorrectly yield "2".
• Parsing << in asm would not be correctly handled.

Version 0.7.11

Changes / improvements

• Removed support for LLVM 17, 18.
• Detect large temporaries when creating slices on the stack #2665
• Search for the linker in PATH; use the builtin linker if CC missing. #2906
• constdef inference through binary expressions: Foo f = Foo.AUDIO | Foo.VIDEO can be written Foo f = AUDIO | VIDEO;
• Fix for LLVM 22+ compatibility #2987
• @weaklink for just affecting linkage.
• Add a fully static build of c3c for Linux. #2949
• @weak now allows direct overriding of @weak definitions with a real definition.
• Unified SDK fetching under c3c fetch-sdk <target> (windows, android) and added support for automatic Android NDK (r29) download. Better progress bar. #3019
• Improved Linux backtrace readability by stripping internal panic and runtime startup frames. #3008
• Added repetition compression for deep recursive stacks in backtraces. #3008
• Added new builtins: $$acos, $$asin, $$atan, $$cosh, $$exp10, $$sinh, $$tan and $$tanh.
• Added the rest of the xoshiro and xoroshiro PRNG variants. #3027
• Improve error when using keyword as identifier #3066
• Warn when using $$builtin functions outside of the stdlib #3065
• Zero element enums now disallowed.

Stdlib changes

• Add contract on any_to_enum_ordinal and any_to_int to improve error when passed an empty any. #2977
• Add hash method for ZStrings. #2982
• Added json serialization from structs.
• Add keccak and Keccak-based hash functions: sha3, shake, cshake, kmac, turboshake, tuplehash, and parallelhash. #2728
• Added fault.short_name and fault.@short_name to get just the fault name for both run and compile time. #3002
• Compiler runtime functions extracted outside of std.
• Add the GZIP file format (RFC 1952).
• Add file::last_modified.
• Make DateTime and DateTimeTz Printable.
• Add to_format functionality for DateTime.
• SubProcess/process::create/process::execute_stdout_to_buffer deprecated, replaced by Process/process:spawn/process::run_capture_stdout.
• Add support for AES-encrypted Zip files (AE-1 and AE-2 formats).
• Add Argon2 memory-hard hashing with associated tests. #2773
• Matrix type is now column major.
• Fix matrix perspective and ortho, project and unproject to be RH [0,1]
• Add vec3 methods: rejection, project, implement unproject.
• Add vector function cubic_hermite
• Deprecated sq_magnitude, barycenter, towards, ortho_normalize, clamp_mag, use length_sq, barycentric, move_towards, orthonormalize, clamp_length instead.
• Add Quaternion conversion functions to from Euler angles and axis+angle.
• math::deg_to_rad and math::rad_to_deg respects the underlying type, returning float on a float argument.
• Added float.to_radians and float.to_degrees and the same for double.
• Added Quat, Mat2, Mat3 and Mat4, Vec2, Vec3, Vec4 aliases.
• Added is_normalized to Quaternion and floating point vectors.
• Added quaternion::from_rotation and quaternion::from_normalized_rotation
• Added Rect type.
• Added matrix::frustum.
• Added math::@abs for compile time abs.
• Make Errno a constdef containing all definitions. Deprecated libc::errno constants.
• random::seeder no longer uses temp memory.
• Add simple member-wise struct comparison with member_eq. #2801
• std::core::mem::allocator deprecated and split into std::core::mem::allocators containing allocators and std::core::mem::alloc for various allocation methods.
• Add always_assert builtin macro.
• Add an entropy module to generate cryptographically-secure random bytes. #3022
• Add a builtin TIMEOUT fault definition. #3022
• Base32, Base64, Hex and Codepage encoding deprecates encode_buffer and decode_buffer. Those are replaced by encode_into and decode_into with dst being the first argument. #3055
• hex::encode_bytes and hex::decode_bytes are deprecated in favour of hex::encode_bytes_into and hex::decode_bytes_into which has dst the first argument. #3055
• Deprecation of @unaligned_load and @unaligned_store. Use mem::load and mem::store instead.

Version 0.7.10

0.7.10 Change list

Changes / improvements

• C3 is now using its own LLVM libraries when building releases.
• Method resolution and $defined now works together well unless definitions are out of order for real.
• Improve error message when using functions as values #2856
• Improve support for Android with Termux.
• Integrated download of the MSVC SDK when compiling for Windows.
• For c3c init with library templates, provide example exported functions. #2898
• unsigned % signed and unsigned / signed is no longer allowed without explicit casts, except for const denominators. #2928
• New enum associated value syntax.
• Individual warning settings added.
• Change typedef and const enums to not convert from literals by default.
• Add @constinit to allow old typedef behaviour.
• Include actual element count in the error message when the array initializer size does not match the expected size.
• Add --print-large-functions for checking which functions likely dominate the compile time.
• Improve error message when providing alias with a typeid expression where a type was expected. #2944
• Const enums removed.
• Constdef declarations introduced.
• Properly support @deprecated as contract.
• Support deprecating enum values.
• Improve error when trying to use an extern const as a compile time constant. #2969
• vendor-fetch command now lists all available packages by default. #2976
• Typekind enums are changed CONST_ENUM -> CONSTDEF, DISTINCT -> TYPEDEF.

Stdlib changes

• Summarize sort macros as generic function wrappers to reduce the amount of generated code. #2831
• Remove dependency on temp allocator in String.join.
• Remove dependency on temp allocator in File.open.
• Added PEM encoding/decoding. #2858
• Add Murmur3 hash.
• Add optional line-length limitations to io::readline and io::readline_to_stream. #2879
• Add Xorshiro128++.
• Add single-byte code page support (DOS/OEM, Windows/ANSI, and ISO/IEC 8859).
• Add array::even, array::odd, and array::unlace macros. #2892
• Add discrete and continuous distributions in std::math::distributions.
• Add bitorder functions store_le, load_le, store_be, store_le.
• Stream functions now use long/ulong rather than isz/usz for seek/available.
• instream.seek is replaced by set_cursor and cursor.
• instream.available, cursor etc are long/ulong rather than isz/usz to be correct on 32-bit.
• Enable asynchronous, non-blocking reads of subprocess STDOUT/STDERR pipes on POSIX systems.

Fixes

• Add error message if directory with output file name already exists
• Regression where nested lambdas would be evaluated twice.
• Compiler crash when using arrays of vectors in lists. #2889
• Fix list[0].i = 5 when list[0] returns a pointer. #2888
• Shadowing not detected for generic declarations #2876
• Const inline enums would not always implicitly get converted to the underlying type.
• Update to dstring.append_string to take any type converting to String.
• Flag --cpu-flags doesn't work if the first item is an exclusion. #2905
• Reallocating overaligned memory with the LibcAllocator was unsafe.
• Using [] or .foo on $$ functions would not raise error but instead crash
• Improved underlining errors/warnings when unicode is used. #2887
• Fix std::io::Formatter integer issue for large uint128 decimal values.
• --safe=no disabled compile-time errors on compile-time known runtime @require checks #2936
• On assert known false, the message was not shown for no-args.
• Adding the incorrect sized vector to a pointer vector would cause a crash.
• Member access on a struct returned by the assignment expression, cause crash #2947
• Trying to slice an indexable type leads to misleading error message #2958
• Warn on use of visibility modifiers on methods. #2962
• Compiler crash using ?? with a void? macro #2973
• Fix issue when extending a generic type with a method in another module.

Version 0.7.9

0.7.9 Change list

Changes / improvements

• Add --custom-libc option for custom libc implementations.
• Support for NetBSD.
• Testing for the presence of methods at the top level is prohibited previous to method registration.
• $$mask_to_int and $$int_to_mask to create bool masks from integers and back.
• Better error messages when slicing a pointer to a slice or vector. #2681
• Generics using ad-hoc <...> rather than module based.
• Reduced memory usage for backtraces on Linux.
• On win32 utf-8 console output is now enabled by default in compiled programs
• Add $$VERSION and $$PRERELEASE compile time constants.
• Require () around assignment in conditionals. #2716
• $$unaligned_load and $$unaligned_store now also takes a "is_volatile" parameter.
• Module-based generics using {} is deprecated.
• Create optional with ~ instead of ?. return io::EOF?; becomes return io::EOF~.
• Deprecated use of ? to create optional.
• Make foo.$abc implicitly mean foo.eval("$abc").
• Deprecating multi-level array length inference. int[*][*] is deprecated and will be removed 0.8.0.
• Combining argument-less initialization with argument init for bitstructs is now allowed e.g. { .b, .c = 123 }.

Fixes

• Remove use of LLVMGetGlobalContext for single module compilation.
• Fixed bug where constants would get modified when slicing them. #2660
• Regression with npot vector in struct triggering an assert #2219.
• Casting bitstruct to wider base type should be single step #2616.
• Optional does not play well with bit ops #2618.
• Bytebuffer.grow was broken #2622.
• Hex escapes like "\x80" would be incorrectly lowered. #2623
• Ignore const null check on deref in $defined and $sizeof #2633.
• Subscripting of constant slices would sometimes be considered non-constant #2635.
• Compiler crash when concatenating structs and arrays to an untyped list.
• Strings assigned to longer arrays would crash codegen, e.g. char[10] x = "abcd.
• Typedefs and structs with inline types supporting lengthof would not work with lengthof #2641.
• $defined(foo()) now correctly errors if foo() would require a path.
• @if($defined((char*){}.foo())) does not error if foo is missing.
• Hard limit of 127 characters for identifiers.
• $$LINE would sometimes yield the incorrect format.
• Fix error message when a method has the wrong type for the first argument.
• Unit tests allocating too much tmem without @pool would cause errors in unrelated tests. #2654
• Incorrect rounding for decimals in formatter in some cases. #2657
• Incorrectly using LLVMStructType when emitting dynamic functions on MachO #2666
• FixedThreadPool join did not work correctly.
• Fix bug when creating bool vectors in certain cases.
• Compiler assert when passing returning CT failure immediately rethrown #2689.
• Converting between simd/non-simd bool vector would hit a compiler assert. #2691
• i<n> suffixes were not caught when n < 8, causing an assert.
• Parse error in $defined was not handled correctly, leading to an assertion.
• Assert when struct/array size would exceed 4 GB.
• Assert when encountering a malformed module alias.
• Assert when encountering a test function with raw vaarg parameters.
• foo.x was not always handled correctly when foo was optional.
• x'1234' +++ (ichar[1]) { 'A' } would fail due to missing const folding.
• Miscompilation: global struct with vector could generate an incorrect initializer.
• String.tokenize_all would yield one too many empty tokens at the end.
• String.replace no longer depends on String.split.
• Fix the case where \u<unicode char> could crash the compiler on some platforms.
• Designated initialization with ranges would not error on overflow by 1.
• io::read_fully now handles unbounded streams properly.
• Crash when doing a type property lookup for const inline enums in some cases #2717.
• Incorrect alignment on typedef and local variable debug info.
• Assert on optional-returning-function in a comma expression. #2722
• Creating recursive debug info for functions could cause assertions.
• bitorder::read and bitorder::write may fail because of unaligned access #2734.
• Fix LinkedList.to_format to properly iterate linked list for printing.
• Hashing a vector would not use the entire vector in some cases.
• Fix to temp_directory on Windows #2762.
• Too little memory reserved when printing backtrace on Darwin #2698.
• In some cases, a type would not get implicitly converted to a typeid #2764.
• Assert on defining a const fault enum with enumerator and fault of the same name. #2732
• Passing a non-conststring to module attributes like @cname would trigger an assert rather than printing an error. #2771
• Passing different types to arg 1 and 2 for $$matrix_transpose would trigger an assert. #2771
• Zero init of optional compile time variable would crash the compiler. #2771
• Using multiple declaration for generics in generic module would fail. #2771
• Defining an extern const without a type would crash rather than print an error. #2771
• Typedef followed by brace would trigger an assert. #2771
• Union with too big member would trigger an assert. #2771
• Bitstruct with unevaluated user-defined type would cause a crash. #2771
• Using named parameters with builtins would cause a crash. #2771
• In some cases, using missing identifiers with builtins would cause a crash. #2771
• Using $defined with function call missing arguments would cause a crash. #2771
• Adding @nostrip to a test function would crash. #2771
• Mixing struct splat, non-named params and named params would crash rather than to print an error. #2771
• Creating a char vector from bytes would crash. #2771
• Using $$wstr16 with an illegal argument would crash instead of printing an error. #2771
• Empty struct after @if processing was not detected, causing a crash instead of an error. #2771
• Comparing an uint and int[<4>] was incorrectly assumed to be uint compared to int, causing a crash instead of an error. #2771
• When an int[*][6] was given too few values, the compiler would assert instead of giving an error. #2771
• Inferring length from a slice was accidentally not an error.
• Eager evaluation of macro arguments would break inferred arrays on some platforms. #2771.
• Vectors not converted to arrays when passed as raw vaargs. #2776
• Second value in switch range not checked properly, causing an error on non-const values. #2777
• Broken cast from fault to array pointer #2778.
• $typeof untyped list crashes when trying to create typeid from it. #2779
• Recursive constant definition not properly detected, leading to assert #2780
• Failed to reject void compile time variables, leading to crash. #2781
• Inferring the size of a slice with an inner inferred array using {} isn't detected as error #2783
• Bug in sysv abi when passing union in with floats #2784
• When a global const has invalid attributes, handling is incorrect, leading to a crash #2785.
• int? ? was not correctly handled. #2786
• Casting const bytes to vector with different element size was broken #2787
• Unable to access fields of a const inline enum with an aggregate underlying type. #2802
• Using an optional type as generic parameter was not properly caught #2799
• Instantiating an alias of a user-defined type was not properly caught #2798
• Too deeply nested scopes was a fatal crash and not a regular semantic error. #2796
• Recursive definition of tag not detected with nested tag/tagof #2790
• Attrdef eval environment lacked rtype, causing error on invalid args #2797
• $typeof() returns typeinfo, causing errors #2795.
• Empty ichar slice + byte concatenation hit an assert. #2789
• Remove dependency on test tmp library for stdlib compiler tests. #2800
• Comparing a flexible array member to another type would hit an assert. #2830
• Underlying slice type not checked correctly in $defined #2829
• Checking for exhaustive cases is done even in if-chain switch if all is enum #2828
• Constant shifting incorrectly doesn't flatten the underlying vector base #2825
• String not set as attributes resolved breaking has_tagof #2824
• Self referencing forward resolved const enum fails to be properly detected #2823
• Incorrectly try compile time int check on vector #2815
• Generating typeid from function gives incorrect typeid #2816
• Recursive definitions not discovered when initializer is access on other const #2817
• Slice overrun detected late hit codegen assert #2822
• Compile time dereference of a constant slice was too generous #2821
• Constant deref of subscript had inserted checks #2818
• Raw vaargs with optional return not lowered correctly #2819
• Early exit in macro call crashes codegen #2820
• Empty enums would return the values as zero sized arrays #2838
• Store of zero in lowering did not properly handle optionals in some cases #2837
• Bitstruct accidentally allowed other arrays than char arrays #2836
• Bitstruct as substruct fails to properly work with designated initializers. #2827
• Bug when initializing an inferred array with deep structure using designated init #2826
• Packed .c3l files without compressions weren't unpacked correctly.
• Lowering of optional in && was incorrect #2843
• Resolving &X.b when X is a const incorrectly checked for runtime constness #2842
• Alignment param on $$unaligned_* not checked for zero #2844
• Fix alignment for uint128 to 16 with WASM targets.
• Incorrect assert in struct alignment checking #2841
• Packed structs sometimes not lowered as such.
• Crash when creating $Type* where $Type is an optional type #2848
• Crashes when using io::EOF~! in various unhandled places. #2848
• Crash when trying to create a const zero untyped list #2847
• Incorrect handling when reporting fn with optional compile time type #2862
• Optional in initializer cause a crash #28...

Version 0.7.8

0.7.8 Change list

Changes / improvements

• Improve multiline string parser inside compiler #2552.
• Missing imports allowed if module @if evaluates to false #2251.
• Add default exception handler to Win32 #2557.
• Accept "$schema" as key in project.json #2554.
• Function referencing in @return? for simplified fault declarations. Check @return? eagerly #2340.
• Enums now work with membersof to return the associated values. #2571
• Deprecated SomeEnum.associated in favour of SomeEnum.membersof
• Refactored @simd implementation.
• Improve error message for Foo{} when Foo is not a generic type #2574.
• Support @param directives for ... parameters. #2578
• Allow splatting of structs. #2555
• Deprecate --test-nocapture in favour of --test-show-output #2588.
• Xtensa target no longer enabled by default on LLVM 22, Compile with -DXTENSA_ENABLE to enable it instead
• Add float[<3>] x = { .xy = 1.2, .z = 3.3 } swizzle initialization for vectors. #2599
• Support int $foo... arguments. #2601
• Add musl support with --linux-libc=musl.

Fixes

• Foo.is_eq would return false if the type was a typedef and had an overload, but the underlying type was not comparable.
• Remove division-by-zero checks for floating point in safe mode #2556.
• Fix division-by-zero checks on a /= 0 and b /= 0f #2558.
• Fix fmod a %= 0f.
• Regression vector ABI: initializing a struct containing a NPOT vector with a constant value would crash LLVM. #2559
• Error message with hashmap shows "mangled" name instead of original #2562.
• Passing a compile time type implicitly converted to a typeid would crash instead of producing an error. #2568
• Compiler assert with const enum based on vector #2566
• Fix to Path handling c:\foo and \home parent. #2569
• Fix appending to c:\ or \ #2569.
• When encountering a foreach over a ZString* it would not properly emit a compilation error, but hit an assert #2573.
• Casting a distinct type based on a pointer to an any would accidentally be permitted. #2575
• overflow_* vector ops now correctly return a bool vector.
• Regression vector ABI: npot vectors would load incorrectly from pointers and other things. #2576
• Using defer catch with a (void), would cause an assertion. #2580
• Fix decl attribute in the wrong place causing an assertion. #2581
• Passing a single value to @wasm would ignore the renaming.
• *(int*)1 incorrectly yielded an assert in LLVM IR lowering #2584.
• Fix issue when tests encounter a segmentation fault or similar.
• With project.json, when overriding with an empty list the base settings would still be used. #2583
• Add sigsegv stacktrace in test and regular errors for Darwin Arm64. #1105
• Incorrect error message when using generic type that isn't imported #2589
• String.to_integer does not correctly return in some cases where it should #2590.
• Resolving a missing property on a const enum with inline, reached an assert #2597.
• Unexpected maybe-deref subscript error with out parameter #2600.
• Bug on rethrow in return with defer #2603.
• Fix bug when converting from vector to distinct type of wider vector. #2604
• $defined(hashmap.init(mem)) causes compiler segfault #2611.
• Reference macro parameters syntax does not error in certain cases. #2612
• @param name parsing too lenient #2614.

Stdlib changes

• Add CGFloat CGPoint CGSize CGRect types to core_foundation (macOS).
• Add NSStatusItem const enum to ns module (macOS).
• Add NSWindowCollectionBehavior NSWindowLevel NSWindowTabbingMode to ns module (macOS).
• Add ns::eventmask_from_type function to objc (macOS).
• Deprecate objc enums in favour of const inline enums backed by NS numerical types, and with the NS prefix, to better align with the objc api (macOS).
• Deprecate event_type_from function in favour of using NSEvent directly, to better align with the objc api (macOS).
• Add unit tests for objc and core_foundation (macOS).
• Make printing typeids give some helpful typeid data.
• Add NSApplicationTerminateReply to ns module (macOS).
• Add registerClassPair function to objc module (macOS).
• Somewhat faster BigInt output.
• Cache printf output.