Micha Feigin <[EMAIL PROTECTED]> writes: MF> How do I get help on c/c++ functions, including the library (.h) file MF> for them? MF> man query etc. ? (how do i search for it?)
Functions in the standard C library generally have man pages in sections 2 or 3. Also, a terminology clarification that will probably save you some trouble: *.h files are *not* libraries. The *.h files are C (or C++) "include" files, which contain valid C (or C++) code that are generally declarations for things that exist in some library (possibly the standard C library). These generally live in /usr/include. "Library" files are *.a and *.so files that live in /lib or /usr/lib, and contain the actual compiled code for the library. So to successfully use a library, you need to #include the correct header files from your source file(s), and you need to link your binary against the actual library with the -l switch. As a simple example, the sin() function is in the standard math library (libm.so), and its prototype is in the math.h header file, so your source would have "#include <math.h>" in it, and you'd link with 'cc -lm foo.o'. MF> Is it possible to get a list of functions available on the system, MF> and/or a list of available c libraries (.h) and their coresponding MF> funcions? Try 'ls /usr/include' for a start, and looking at the contents of the various header files. -- David Maze [EMAIL PROTECTED] http://donut.mit.edu/dmaze/ "Hey, Doug, do you mind if I push the Emergency Booth Self-Destruct Button?" "Oh, sure, Dave, whatever...you _do_ know what that does, right?"
