STRNCMP(P) POSIX Programmer's Manual STRNCMP(P)NAMEstrncmp - compare part of two strings
SYNOPSIS
#include <string.h>
int strncmp(const char *s1, const char *s2, size_t n);
DESCRIPTION
The strncmp() function shall compare not more than n bytes (bytes that
follow a null byte are not compared) from the array pointed to by s1 to
the array pointed to by s2.
The sign of a non-zero return value is determined by the sign of the
difference between the values of the first pair of bytes (both inter‐
preted as type unsigned char) that differ in the strings being com‐
pared.
RETURN VALUE
Upon successful completion, strncmp() shall return an integer greater
than, equal to, or less than 0, if the possibly null-terminated array
pointed to by s1 is greater than, equal to, or less than the possibly
null-terminated array pointed to by s2 respectively.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOstrcmp() , the Base Definitions volume of IEEE Std 1003.1-2001,
<string.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 STRNCMP(P)
