#include<vector> no such file or directory

Question

So I need to use vectors in my project. I have changed the .m file to .mm to make it Objective-C++. But, when I try saying:

#include <vector>

In my .h it says the file or directory can not be found. If I put that line of code though in my .mm file though the error doesn't appear, but since I need a vector in the @interface (which is in my .h) what should I do to make the .h file find the vector file?

Also, I have tried changing it to compiling everything as Objective-C++, but that doesn't work because I get some errors in the Cocos2d library I am using...

Answer 1

Is your .h file being included in any OTHER .h or .m files?

If so, you'll have to make those (or files including them, etc) into .mm as well.

Answer 2

Without changing any .m to .mm or anything like that, if you click your project, click tagets->build settings go all the way down to "LLVM GCC 4.2 - Languages" you will see Compile Sources As change that value to Objective-C++;