INTRO(3)                    Linux Programmer's Manual                   INTRO(3)

       intro - Introduction to library functions

       This chapter describes all library functions excluding the library
       functions described in chapter 2, which implement system calls.  There
       are various function groups which can be identified by a letter which is
       appended to the chapter number:

       (3C)   These functions, the functions from chapter 2 and from chapter 3S
              are contained in the C standard library libc, which will be used
              by cc(1) by default.

       (3S)   These functions are parts of the stdio(3S) library.  They are
              contained in the standard C library libc.

       (3M)   These functions are contained in the arithmetic library libm.
              They are used by the f77(1) FORTRAN compiler by default, but not
              by the cc(1) C compiler, which needs the option -lm.

       (3F)   These functions are part of the FORTRAN library libF77.  There are
              no special compiler flags needed to use these functions.

       (3X)   Various special libraries.  The manual pages documenting their
              functions specify the library names.

       Look at the header of the manual page for the author(s) and copyright
       conditions.  Note that these can be different from page to page!

Linux                           13 December 1995                        INTRO(3)