12 lines
477 B
C
12 lines
477 B
C
// http://stackoverflow.com/questions/3385515/static-assert-in-c
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#define STATIC_ASSERT(COND,MSG) typedef char static_assertion_##MSG[(!!(COND))*2-1]
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// token pasting madness:
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#define COMPILE_TIME_ASSERT3(X,L) STATIC_ASSERT(X,static_assertion_at_line_##L)
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#define COMPILE_TIME_ASSERT2(X,L) COMPILE_TIME_ASSERT3(X,L)
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#define COMPILE_TIME_ASSERT(X) COMPILE_TIME_ASSERT2(X,__LINE__)
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COMPILE_TIME_ASSERT(sizeof(long)==8);
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int main()
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{
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COMPILE_TIME_ASSERT(sizeof(int)==4);
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}
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