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
(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
(3X) Various special libraries. The manual pages document-
ing 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!