Aro
A C compiler with the goal of providing fast compilation and low memory usage with good diagnostics.
Currently it can preprocess, parse and semantically analyze ~85% of standard C17 with work still being needed to support all of the usual extensions.
Basic code generation is supported for x86-64 linux and can produce a valid hello world:
$ cat hello.c
extern int printf(const char *restrict fmt, ...);
int main(void) {
printf("Hello, world!\n");
return 0;
}
$ zig build run -- hello.c -o hello
$ ./hello
Hello, world!
$Future plans for the project include making it the C backend of Zig's translate-c feature and
making it an optional C frontend for the self-hosted Zig compiler.
#define MAIN ma##in
#ifndef FOO
int *something[5];
#endif
#if defined MAIN
int MAIN(int argc, const char *argv[]) {
return (argc * (char)4)[argv];
}
#endifvar: '[5]*int'
name: something
fn_def: 'fn (argc: int, argv: **const char) int'
name: main
body:
compound_stmt_two: 'void'
return_stmt: 'void'
expr:
array_access_expr: '*const char' lvalue
lhs:
lval_to_rval: '**const char'
decl_ref_expr: '**const char' lvalue
name: argv
index:
paren_expr: 'int'
operand:
mul_expr: 'int'
lhs:
lval_to_rval: 'int'
decl_ref_expr: 'int' lvalue
name: argc
rhs:
int_cast: 'int' (value: 4)
cast_expr: 'char'
operand:
int_literal: 'int'
value: 4
types are printed in Zig style as C types are more confusing than necessary, actual error messages contain proper C like types
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