问题
Eclipse will not allow me to include <iostream>. I'm on a mac and when I try the same thing using xcode it works. I'm running eclipse Indigo and I've tried both the MAc OS X compiler option and the cross platform one.
回答1:
I resolved this by manually adding the path to iostream to my project:
Right click on project -> Properties -> C/C++ General -> Paths and Sympols -> GNU C++ (under Languages column in Includes) -> Add
I added the following (the ones in Bold) -- I think the second one is what you need:
来源：https://stackoverflow.com/questions/11543198/unresolved-inclusion-iostream-in-eclipse-on-mac