C++ Macro replaces needed member function

Asked Apr 05 '22 at 00:33

Active Apr 05 '22 at 00:33

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I have a problem in the following line (and several other similar ones):

std::vector<uint8_t> decodeTable(128, std::numeric_limits<uint8_t>::max());

std::numeric_limits<uint8_t>::max() is a member function. However, somewhere in another header, max() is defined as a macro. As a result, it is seen as a call to the macro and the scope just causes a syntax error, plus an error because there weren't enough arguments passed into the macro.

I'm wondering if there's a way around that? I'm trying to get a pre-existing library to run so I can't just rewrite everything in a different way.

asked Apr 05 '22 at 00:33

pteryx

Is this on Windows and you are including `windows.h` somehow? – user17732522 Apr 05 '22 at 00:38
@user17732522 It is indeed on windows, macro is defined in minwindef.h – pteryx Apr 05 '22 at 00:45
@user17732522 Yes, thank you. I already tried NOMINMAX and it didn't work, but the trick with parentheses seems to have fixed it. – pteryx Apr 05 '22 at 00:55
You need to define `NOMINMAX` before you include `windows.h` or `minwindef.h`. – user17732522 Apr 05 '22 at 02:26

C++ Macro replaces needed member function

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