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STRCASECMP(3P)             POSIX Programmer's Manual            STRCASECMP(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       strcasecmp, strncasecmp - case-insensitive string comparisons
SYNOPSIS
       #include <strings.h>
       int strcasecmp(const char *s1, const char *s2);
       int strncasecmp(const char *s1, const char *s2, size_t n);

DESCRIPTION
       The strcasecmp() function shall compare, while ignoring differences  in
       case,  the  string pointed to by s1 to the string pointed to by s2. The
       strncasecmp() function shall compare,  while  ignoring  differences  in
       case,  not  more  than  n bytes from the string pointed to by s1 to the
       string pointed to by s2.
       In the POSIX locale, strcasecmp() and strncasecmp() shall behave as  if
       the  strings had been converted to lowercase and then a byte comparison
       performed. The results are unspecified in other locales.
RETURN VALUE
       Upon completion, strcasecmp() shall return  an  integer  greater  than,
       equal  to,  or less than 0, if the string pointed to by s1 is, ignoring
       case, greater than, equal to, or less than the string pointed to by s2,
       respectively.
       Upon  successful  completion,  strncasecmp()  shall  return  an integer
       greater than, equal to, or less than 0, if the possibly null-terminated
       array  pointed  to  by s1 is, ignoring case, greater than, equal to, or
       less than the possibly null-terminated array pointed to by s2,  respec-
       tively.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       None.
FUTURE DIRECTIONS
       None.
SEE ALSO
       The Base Definitions volume of IEEE Std 1003.1-2001, <strings.h>
COPYRIGHT
       Portions  of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained  online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                  2003                       STRCASECMP(3P)