Is it possible to determine at compile time whether an implementation provides exact-width integer types? [duplicate]

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Is it possible to determine at compile time whether an implementation provides exact-width integer types? Sample code (wanted):

#include <stdint.h>

#if HAS_EXACT_WIDTH_INTEGER_TYPES
uint32_t    i;
#else
/* handle the case */
#endif

Reason of the question: writing an adaptable code, which does not lead to compile time errors if an implementation does not provide exact-width integer types.



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