c3c/releasenotes.md

Release Notes

0.4.0 Change List

• Compatibility with LLVM 16.
• Dropped LLVM 12 support.
• Updated vector comparisons.
• Built in unit testing with @test and compile-test
• Updated memory allocators. Added @scoped and @pool macros.
• Various bug fixes.
• Generic modules may now be generic over integers and booleans.
• Constant pointers may be compile time evaluated.
• Added many new builtins.
• Emit asm using --emit-asm.
• Added --nostdlib and --nolibc.
• Compiling for AVX can now select "native".
• Fixes to adding libraries at link time.
• Various improved error messages.
• Windows debug info fixes.
• Add of foreach_r for reverse list traversal.
• Script downloading the MSVC SDK to cross compile to windows.
• Many standard library additions.
• Extension methods may be added for built-in types.
• Macros may take vector and array arguments generic over length.
• Macro varargs with $vaarg, $vacount etc.
• Many vector builtins added as dot methods.
• in / out / inout doc parameters checked.
• Initial inline asm support for aarch64 and x64.
• Single line short function declaration.
• Added $checks builtin.
• Added $include builtin for including other text files.
• Optional single module compilation.
• Static initialization / finalization to have code running at start/end.
• C3 custom printf function in the stdlib.
• []= overload now works correctly.
• Static libraries may now be built.
• More compile time reflection added and general cleanup done.
• usize/isize/iptrdiff/uptrdiff replaced by usz/isz.
• Add var to allow type inference on regular variables.
• LLVM codegen optimizations.
• ?? now allows chaining another optional.
• int128 support on all platforms.
• import is now allowed anywhere at the top level.
• project.c3p renamed project.json
• Update to project properties, e.g. "libs" -> "dependencies" etc.
• $$TIME, $$DATE and $$FUNCTION builtin defines added.
• $echo function to print messages at compile time.
• Improvements to untyped lists.
• Various builtins added: $$prefetch, $$reverse, $$shufflevector etc.

0.3.0 Change List

Changes / improvements:

• Allow any expression as default expression.
• Allow using enums for indexing arrays.
• Added $convertable / $castable compile time functions.
• Removed ´func´ deprecated keyword
• Slicing a distinct type now returns the distinct type.
• Renamed @autoimport -> @builtin
• Zero length arrays not allowed
• Allow methods may use ref, pointer and value arguments as "self"
• Updated external name mangling
• More advanced introspection.
• @maydiscard and @nodiscard annotations
• New type promotion rules: The common type of int[x]* and int[y]* is int[]
• Added type.inner and type.len reflection.
• Support float mod operations.
• Add float.max/min.
• Allow [in] contract to be used on subarray types.
• Add linker and linked dir arguments to build files.
• Auto-import std::core.
• LLVM 15 support.
• Beter native file handling for MSVC
• New import rules – recursive imports
• Add lld linking for FreeBSD
• User defined attributes. @Foo = @inline
• Support enum associated values.
• @ is now part of the name of an attribute or a macro. Macros without '@' must be function-like.
• Ordinal based enums.
• Allow locals to shadow global variables.
• Prefer inferred constant over global in the case of MyEnum f = BAR;
• Enum and fault name reflection.
• Deref null error now panics in safe mode.

Changes to stdlib:

• Updated allocators.
• Added enum_by_name.
• Moved bitcast to builtin module.
• Native printf for files and strings.
• Updated String.
• Comparison macros
• Added Binary-Heap Based Priority Queue by David Kopec
• Matrix Math Library by PixelRifts
• UTF conversions in "conv" module.

Fixes:

• Attributes correctly checks for recursive definitions now.
• Added a max bitstruct size.
• Fix of expr location in args.
• Fixing distinct, typedef and bitstruct copying. Fix where global constants did not need to be constant.
• Better error on all upper parameter names.
• Fix constant typeid comparisons.
• Simplify and corrected if try/catch parsing.
• Fix bug with { [A] = 1 }
• Conversion unsigned int -> enum fixed.
• Fix bug preventing implicit & on optionals.
• More efficient int[] a = {}
• Fix bug in extension methods for generic types and typedefs
• Fix to extension methods in other modules.
• Disallow complist as a regular macro parameter.
• Fix in nested block handling
• Fix of error where {| |} with value return could have no final return
• Vararg abi fix
• Fix "libs" in project creation
• Fix bug with bit struct initialization and zeros
• Reduce size of memory pages used.
• Fix issues with union of const.
• Fix initialization of anonymous structs.
• Fix conversion between distinct void* and null
• Fix of default project creation target format.
• Fix of $sizeof(Type) => Type.sizeof
• Fix stack setting after error return.
• Fix module assignment of declarations
• Global @align fixed
• Fixes enum set with new ordinal based enums
• SysV ABI fix for passing certain things by struct.
• Fix implicitly converting to float in the case of myfloat *= -1