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.




STRCMP(3)                BSD Library Functions Manual                STRCMP(3)

NAME
     strcmp, strncmp -- compare strings

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

     int
     strcmp(const char *s1, const char *s2);

     int
     strncmp(const char *s1, const char *s2, size_t n);

DESCRIPTION
     The strcmp() and strncmp() functions lexicographically compare the null-terminated strings s1 and s2.

     The strncmp() function compares not more than n characters.  Because strncmp() is designed for compar-ing comparing
     ing strings rather than binary data, characters that appear after a `\0' character are not compared.

RETURN VALUES
     The strcmp() and strncmp() functions return an integer greater than, equal to, or less than 0, accord-ing according
     ing as the string s1 is greater than, equal to, or less than the string s2.  The comparison is done
     using unsigned characters, so that `\200' is greater than `\0'.

SEE ALSO
     bcmp(3), memcmp(3), strcasecmp(3), strcoll(3), strxfrm(3), wcscmp(3)

STANDARDS
     The strcmp() and strncmp() functions conform to ISO/IEC 9899:1990 (``ISO C90'').

BSD                            October 11, 2001                            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