compiler.h

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/*
* Define useful compiler-specific macros
* (C) 2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
 
#ifndef BOTAN_UTIL_COMPILER_FLAGS_H_
#define BOTAN_UTIL_COMPILER_FLAGS_H_
 
#include <botan/api.h>
#include <botan/build.h>
 
BOTAN_FUTURE_INTERNAL_HEADER(compiler.h)
 
/*
* Define BOTAN_COMPILER_HAS_BUILTIN
*/
#if defined(__has_builtin)
   #define BOTAN_COMPILER_HAS_BUILTIN(x) __has_builtin(x)
#else
   #define BOTAN_COMPILER_HAS_BUILTIN(x) 0
#endif
 
/*
* Define BOTAN_COMPILER_HAS_ATTRIBUTE
*/
#if defined(__has_attribute)
   #define BOTAN_COMPILER_HAS_ATTRIBUTE(x) __has_attribute(x)
   #define BOTAN_COMPILER_ATTRIBUTE(x) __attribute__((x))
#else
   #define BOTAN_COMPILER_HAS_ATTRIBUTE(x) 0
   #define BOTAN_COMPILER_ATTRIBUTE(x) /**/
#endif
 
/*
* Define BOTAN_FUNC_ISA
*/
#if BOTAN_COMPILER_HAS_ATTRIBUTE(target)
   #define BOTAN_FUNC_ISA(isa) BOTAN_COMPILER_ATTRIBUTE(target(isa))
#else
   #define BOTAN_FUNC_ISA(isa)
#endif
 
/*
* Define BOTAN_FUNC_ISA_INLINE
*/
#define BOTAN_FUNC_ISA_INLINE(isa) BOTAN_FUNC_ISA(isa) BOTAN_FORCE_INLINE
 
/*
* Define BOTAN_EARLY_INIT
*/
#if BOTAN_COMPILER_HAS_ATTRIBUTE(init_priority)
   #define BOTAN_EARLY_INIT(prio) BOTAN_COMPILER_ATTRIBUTE(init_priority(prio))
#else
   #define BOTAN_EARLY_INIT(prio) /**/
#endif
 
/*
* Define BOTAN_FORCE_INLINE
*/
#if !defined(BOTAN_FORCE_INLINE)
 
   #if BOTAN_COMPILER_HAS_ATTRIBUTE(always_inline)
      #define BOTAN_FORCE_INLINE inline BOTAN_COMPILER_ATTRIBUTE(always_inline)
 
   #elif defined(_MSC_VER)
      #define BOTAN_FORCE_INLINE __forceinline
 
   #else
      #define BOTAN_FORCE_INLINE inline
   #endif
 
#endif
 
#endif