2023-02-10 15:13:26 +08:00

22 lines
848 B
C

#pragma once
#ifndef BASELIB_ALIGN_OF
#if defined(__cplusplus) // We assume C++11 support (also, note that Mscv has correct version numbers on this attribute as opt-in)
#define BASELIB_ALIGN_OF(TYPE_) alignof(TYPE_)
// As of gcc8+clang 8, alignof and _Alignof return the ABI alignment of a type, as opposed to the preferred alignment.
// __alignof still returns the preferred alignment.
// Also see:
// https://gcc.gnu.org/gcc-8/porting_to.html#alignof
// https://releases.llvm.org/8.0.0/tools/clang/docs/ReleaseNotes.html#modified-compiler-flags
#elif STDC_VERSION >= 201112L
#define BASELIB_ALIGN_OF(TYPE_) _Alignof(TYPE_)
#else
#define BASELIB_ALIGN_OF(TYPE_) COMPILER_ALIGN_OF(TYPE_)
#endif
#endif
#ifndef BASELIB_ALIGN_AS
#define BASELIB_ALIGN_AS(ALIGNMENT_) COMPILER_ALIGN_AS(ALIGNMENT_)
#endif