Including Header files

Question

Hi
Am a mainframe guy and new to these stuffs.
Now ,I want to compile a C++ program in Sunstudio.
My question is how & where to add the header files ?
What is the extension to be used for the header files ?
Please someone help me in this regard.

Answer 1

[I had replied to this yesterday but it didn't appear to show up in the thread]
The header file is added to the 'Header files' in the same project For Sun Studio, I am pretty sure that the header files listed in the project
is not used by the compiler to find the header files.
That list of header files is merely a convience for the programmer
as a reference and to quickly find and open header files used in the project.
You need to tell the IDE which directories to search for header files
(that are not standard header files)
I am presuming that the header file(s) the compiler is complaining about is not a standard library header file,
but instead is a header file associated with the source code you are compiling or are associated with
a 3rd party library required by the program.
The #include semantics, as ralphw mentioned, can be a little complex.
As a quick follow up to ralphw's response
generally #includes of the form
#include "foo.h"
indicates that the header file is in the same directory as your project source files.
Normally the compiler can find this file with some simple seach heuristics so
I suspect the offending include line is of the form:
#include <foo.h>
The <> brackets indicates that the header file is in a directory to be specified
in one of the listed include directories.
Include directories may be intrinsic to the compiler implementation
such as standard libraries and/or libraries added by the compiler vendor;
or they may be header files for 3rd party libraries or your own libraries
stored in some directory other than the application program you are compiling.
For 3rd party libraries or your own libraries, provide a list of
directories to seach for included header files.
for command line mode, in almost all c/c++ compilers these directories are listed with
the -I command line argument.
In SunStudio 12, you list the include directories in
your project properties / Parse configuration / Sun C++ compiler / General / Preprocessor definitions
If you have further questions on this, it would be helpful to know
if you are attempting to compile some preexisting code
or are you creating code from scratch.
(It sounds like you are compiling preexisting code that
presumably has been compiled correctly in some other implementation
and are trying to port it to Sun Studio.
If this is the case, it sounds like you simply need to add the
path of the directory containing the offending header file to
this list of include directories.)
It would also be helpful to know the fully qualified
file name of the offending .h file,
and the form of the #include line in the file that is being compiled.
If the #include line is of the form
#include <dir/foo.h> then you need to add the
path of the 'dir' parent directory to the include directories list.