mirror of
https://github.com/odin-lang/Odin.git
synced 2026-01-08 05:53:12 +00:00
89 lines
1.8 KiB
Odin
89 lines
1.8 KiB
Odin
package runtime
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foreign import kernel32 "system:Kernel32.lib"
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@(private)
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foreign kernel32 {
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RaiseException :: proc "stdcall" (dwExceptionCode, dwExceptionFlags, nNumberOfArguments: u32, lpArguments: ^uint) -> ! ---
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}
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windows_trap_array_bounds :: proc "contextless" () -> ! {
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EXCEPTION_ARRAY_BOUNDS_EXCEEDED :: 0xC000008C
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RaiseException(EXCEPTION_ARRAY_BOUNDS_EXCEEDED, 0, 0, nil)
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}
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windows_trap_type_assertion :: proc "contextless" () -> ! {
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windows_trap_array_bounds()
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}
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// @private
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// @(link_name="_tls_index")
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// _tls_index: u32;
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// @private
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// @(link_name="_fltused")
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// _fltused: i32 = 0x9875;
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// @(link_name="memcpy")
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memcpy :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
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foreign kernel32 {
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RtlCopyMemory :: proc "c" (dst, src: rawptr, len: int) ---
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}
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if dst == nil || src == nil || len == 0 {
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return dst
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}
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RtlCopyMemory(dst, src, len)
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return dst
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}
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// @(link_name="memmove")
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memmove :: proc "c" (dst, src: rawptr, len: int) -> rawptr {
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foreign kernel32 {
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RtlMoveMemory :: proc "c" (dst, src: rawptr, len: int) ---
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}
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if dst == nil || src == nil || len == 0 {
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return dst
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}
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RtlMoveMemory(dst, src, len)
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return dst
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}
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// @(link_name="memset")
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memset :: proc "c" (ptr: rawptr, val: i32, len: int) -> rawptr {
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if ptr == nil || len == 0 {
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return ptr
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}
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b := byte(val)
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p_start := uintptr(ptr)
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p_end := p_start + uintptr(max(len, 0))
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for p := p_start; p < p_end; p += 1 {
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(^byte)(p)^ = b
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}
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return ptr
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}
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// @(link_name="memcmp")
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// memcmp :: proc "c" (dst, src: rawptr, len: int) -> i32 {
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// if dst == nil || src == nil {
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// return 0;
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// }
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// if dst == src {
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// return 0;
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// }
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// d, s := uintptr(dst), uintptr(src);
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// n := uintptr(len);
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// for i := uintptr(0); i < n; i += 1 {
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// x, y := (^byte)(d+i)^, (^byte)(s+i)^;
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// if x != y {
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// return x < y ? -1 : +1;
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// }
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// }
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// return 0;
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// }
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