I'm seeing strange errors when my C++ code has min() or max() calls. I'm using Visual C++ compilers.
Check if your code is including the windows.h header file and either your code or other third-party headers have their own min()/max() definitions. If yes, then prepend your windows.h inclusion with a definition of NOMINMAX like this:
#define NOMINMAX
#include <windows.h>
Another possibility could be from side effects. Most min/max macros will include the parameters multiple times and may not do what you expect. Errors and warnings could also be generated.
max(a,i++) expands as ((a) > (i++) ? (a) : (i++))The () in the expansion are to avoid problems if you call it with formulae. Try expanding max(a,b+c)afterwards i is either plus 1 or plus 2
Since Windows defines this as a function-style macro, the following workaround is available:
int i = std::min<int>(3,5);
This works because the macro min()
is expanded only when min
is followed by (
, and not when it's followed by <
.
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