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COMMON: Import STATIC_ASSERT

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This commit is contained in:
Vladimir Serbinenko
2022-11-18 16:57:06 +01:00
committed by Eugene Sandulenko
parent 7b1e313fed
commit 2b7dab2f74
1 changed files with 27 additions and 0 deletions
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common/scummsys.h
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@@ -479,5 +479,32 @@
typedef uint16 OverlayColor;
#endif
#ifndef STATIC_ASSERT
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER > 1600)
/**
* Generates a compile-time assertion.
*
* @param expression An expression that can be evaluated at compile time.
* @param message An underscore-delimited message to be presented at compile
* time if the expression evaluates to false.
*/
#define STATIC_ASSERT(expression, message) \
static_assert((expression), #message)
#else
/**
* Generates a compile-time assertion.
*
* @param expression An expression that can be evaluated at compile time.
* @param message An underscore-delimited message to be presented at compile
* time if the expression evaluates to false.
*/
#define STATIC_ASSERT(expression, message) \
do { \
extern int STATIC_ASSERT_##message[(expression) ? 1 : -1]; \
(void)(STATIC_ASSERT_##message); \
} while (false)
#endif
#endif
#endif