INTRO(3) MachTen Programmer’s Manual INTRO(3)

NAME
intro - introduction to the C libraries

DESCRIPTION
This section provides an overview of the C library functions, their error
returns and other common definitions and concepts. Most of these func-
tions are available from the C library, libc (see libc(3)). Other li-
braries, such as the math library, libm, must be indicated at compile
time with the -l option of the compiler.

A subset of the libc(functions) are available from Fortran; they are de-
scribed separately in intro(3f).

The various libraries (followed by the loader flag):

libc(-lc) Standard C library functions. (See libc(3).) When using the C
compiler cc(1), it is not necessary to supply the loader
flag -lc for these functions. There are several ‘libraries’
or groups of functions included inside of libc: the standard
I/O routines, database routines, bit operators, string opera-
tors, character tests and character operators, des encryption
routines, storage allocation, time functions, signal handling
and more.

libcurses( -lcurses -ltermcap)
Terminal independent screen management routines for two di-
mensional non-bitmap display terminals. (See curses(3).)

libcompat(-lcompat)
Functions which are obsolete but are available for compati-
bility with 4.3BSD. In particular, a number of system call
interfaces provided in previous releases of BSD UNIX have
been included for source code compatibility. Use of these
routines should, for the most part, be avoided. The manual
page entry for each compatibility routine indicates the prop-
er interface to use.

libl(-ll) The library for lex(1).

libm(-lm) The math library, libm. The math library is loaded as needed
by the Pascal compiler pc(1), but not by the C compiler
which requires the -lm flag. (See math(3).)

libmp(-lmp)

libplot(-lplot)
Device independent plotting functions. (See plot(3).)

libplotf77(-lplotf77)
The device independent plotting functions for fortran. (See
plot(3).)

libtermcap-ltermcap
The terminal independent operation library package. (See
termcap(3).)

liby(-ly) The library for yacc(1).

FILES
/usr/lib/libc.a the C library

/usr/lib/libm.a the math library
/usr/lib/libc_p.a the C library compiled for profiling
/usr/lib/libm_p.a the math library compiled for profiling

SEE ALSO
stdio(3), math(3), intro(2), cc(1), ld(1), nm(1)

HISTORY
An intro manual appeared in Version 7 AT&T UNIX.

4th Berkeley Distribution June 5, 1993 2