Mac Developer Library Developer
Search

 

This manual page is part of Xcode Tools version 5.0

To obtain these tools:

If you are running a version of Xcode Tools other than 5.0, view the documentation locally:

  • In Xcode

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • To learn how the manual is organized or to learn about command syntax, read the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Developer Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.




INTRO(3)                 BSD Library Functions 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 def-initions definitions
     initions and concepts.  Most of these functions are available from the System library, libSystem.
     Other libraries must be indicated at compile time with the -l option of the compiler.

     The various libraries (followed by the loader flag):

     libSystem (-lSystem)  Standard C library functions.  When using the C compiler cc(1), it is not neces-sary necessary
                           sary to supply the loader flag -lSystem for these functions.  There are several
                           `libraries' or groups of functions included inside of libSystem: the standard I/O
                           routines, database routines, bit operators, string operators, character tests and
                           character operators, des encryption routines, storage allocation, time functions,
                           signal handling and more.

                           For compatibility with other systems, which provide these capabilities in sepa-rate separate
                           rate libraries (such as libc), symbolic links are provided for -lc, -ldbm, -ldl,
                           -linfo, -lm, -lpoll, -lpthread and -lrpcsvc; they all point to libSystem.

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

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

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

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

FILES
     /usr/lib/libSystem.dylib          the main System library
     /usr/lib/libSystem_debug.dylib    the main System library compiled with debug support
     /usr/lib/libSystem_profile.dylib  the main System library compiled for profiling

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

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

BSD                              Aug 17, 2006                              BSD

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation with the feedback links below.
Bug reports
Report bugs in the functionality of the described tool or API through Bug Reporter.
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.

Feedback