BLI_compiler_compat.h

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
/* `#define typeof()` triggers a bug in some clang-format versions,
 * disable format for entire file to keep results consistent. */
/* clang-format off */
 
#pragma once
 

 
#if defined(_MSC_VER)
#  define alloca _alloca
#endif
 
#if (defined(__GNUC__) || defined(__clang__)) && defined(__cplusplus)
extern "C++" {
template<typename T> static inline T decltype_helper(T x)
{
  return x;
}
#define typeof(x) decltype(decltype_helper(x))
}
#endif
 
/* little macro so inline keyword works */
#if defined(_MSC_VER)
#  define BLI_INLINE static __forceinline
#else
#  define BLI_INLINE static inline __attribute__((always_inline)) __attribute__((__unused__))
#endif
 
#if defined(_MSC_VER)
#  define BLI_INLINE_METHOD __forceinline
#else
#  define BLI_INLINE_METHOD inline __attribute__((always_inline)) __attribute__((__unused__))
#endif
 
#if defined(__GNUC__)
#  define BLI_NOINLINE __attribute__((noinline))
#elif defined(_MSC_VER)
#  define BLI_NOINLINE __declspec(noinline)
#else
#  define BLI_NOINLINE
#endif