Math.h

Dan Forever · 2005-02-12T09:10:32

Using Math.h in a simple 2D game, I am able to use functions like sin() and sqrt() without problems, but when trying to use the #defines created in the math.h header file I get the following errors: error C2065: 'M_PI' : undeclared identifier error C3861: 'M_PI': identifier not found, even with argument-dependent lookup math.h is included in a class .h file, but not the .cpp. I find copying the #defines from the math.h file to my class.h solves the problem, but it feels like I'm just working around a problem rather then solving it. I know it's probably something simple but I don't know what it is, as it seems like it should work. Hell, the text editor (VS.net 2003) pops up a tooltip with #define 3.14159... when I hover the mouse over it, and yet the compiler can't find it :(