How can I check the size of an unsigned in the preprocessor under g++? sizeof is out of the question since it is not defined when during preprocessing.
How can I check the size of an unsigned in the preprocessor under g++?
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How can I check the size of an unsigned in the preprocessor under g++? sizeof is out of the question since it is not defined when during preprocessing.
This may not be the most elegant method, but one thing that you may be able to leverage is UINT_MAX defined in “limits.h”. That is, …
if UINT_MAX == 65535, then you would know that sizeof (unsigned) = 2
if UINT_MAX == 4294967295, then you would know that sizeof (unsigned) = 4.
and so on.
As I said, not elegant, but it should provide some level of usability.
Hope this helps.