//+build !windows package runtime @(link_name="memset") memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr { when false { b := byte(val); p_start := uintptr(ptr); p_end := p + uintptr(max(len, 0)); for p := p_start; p < p_end; p += 1 { (^byte)(p)^ = b; } return ptr; } else { when size_of(rawptr) == 8 { @(link_name="llvm.memset.p0i8.i64") llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---; } else { @(link_name="llvm.memset.p0i8.i32") llvm_memset :: proc(dst: rawptr, val: byte, len: int, align: i32, is_volatile: bool) ---; } return llvm_memset(ptr, byte(val), len, 1, false); } }