Originální popis anglicky:
strcasecmp, strncasecmp - case-insensitive string comparisons
Návod, kniha: POSIX Programmer's Manual
#include <strings.h>
int strcasecmp(const char *
s1, const char
*s2);
int strncasecmp(const char *
s1, const char
*s2, size_t n);
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.
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, respectively.
No errors are defined.
The following sections are informative.
None.
None.
None.
None.
The Base Definitions volume of IEEE Std 1003.1-2001,
<strings.h>
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
.
