I am using Eclipse Juno CDT in Mac OS - Yosemite and somehow I cannot use any header files other than the iostream; despite the fact that all the header-files are included in the includes folder.
The main() program executes perfectly for "Hello World" under iostream, which I guess resides in the same location (inside includes); but throws error for other header file.
Can someone tell me how to point my main() program to the includes.
I was able to resolve this issue by right-clicking my C project and adding the path /usr/include to the includes under Properties->C/C++ General->Paths and Sybmols->Includes->GNU C->Add...
Why it's necessary to perform this step when the project "Includes" suggeste Eclipse already knows the include path is not clear to me either, but I had the exact same issue, and was able to resolve it this way.
See also this question for a picture of the dialog.
