#define NOMINMAX using std::min/max

Question

i recently added:

#define NOMINMAX
#include 
#include 

to my main.cpp in order to use

st         


        

Answer 1

It's likely that your problem is that you #define NOMINMAX after you #include "windows.h". It is important that the #define come first.

The reason is that windows.h (actually I think windef.h, which is included by windows.h) has code similar to this:

#ifndef NOMINMAX
#define min(x,y) ((x) < (y) ? (x) : (y))
#define max(x,y) ((x) > (y) ? (x) : (y))
#endif

So #define NOMINMAX is telling the compiler (or actually the preprocessor) to skip over the definitions of min and max, but it will only apply if you do it before you #include "windows.h".

Answer 2

If you're really desperate, put parentheses around the function names:

(std::min)(x, y);

This syntax won't apply a function-like macro. (Formally, to apply a function-like macro the name of the macro must be followed by optional white space then a '('.)

Answer 3

If you define NOMINMAX, because you prefer the STL version, then you may get problems while including gdiplus.h, which uses the min/max macro. As solution you need to include the STL headers and use "using namespace std" before you include the gdiplus.h.

In example:

#define NOMINMAX

// Include C++ headers
#include <algorithm>
using namespace std;

// Include Windows headers
#include <windows.h>
#include <gdiplus.h>

Answer 4

Define NOMINMAX via a compiler flag:

> cl.exe -DNOMINMAX ...

this will then be defined for all of the source files. I don't use the IDEs but this page provides guidance on navigating the IDE to set this: Using STL in Windows Program Can Cause Min/Max Conflicts :

Simply define the NOMINMAX preprocessor symbol. This can be done in the Developer Studio project under Build, Settings, on the C/C++ tab, in the Preprocessor category. This will suppress the min and max definitions in Windef.h.