strcasecmp, strncasecmp - Perform case-insensitive string
const char *s1,
const char *s2 ); int strncasecmp(
const char *s1,
const char *s2,
size_t n );
Standard C Library (libc)
Interfaces documented on this reference page conform to
industry standards as follows:
strcasecmp(), strncasecmp(): XPG4-UNIX
Refer to the standards(5) reference page for more information
about industry standards and associated tags.
Points to a location containing first string. Points to a
location containing the second of two strings referenced.
Specifies the maximum number of bytes to compare.
The strcasecmp() function compares the string pointed to
by the s1 parameter to the string pointed to by the s2
parameter, while ignoring differences in case. The strncasecmp()
function is similar to the strcasecmp function,
but also compares size. If the size specified by n is
reached before a null, the comparison stops. Note that
these functions work for 7-bit ASCII compares only and
should not be used in internationalized applications.
Upon completion, the strcasecmp() function returns an
integer whose value is greater than, equal to, or less
than 0 (zero), according to whether the s1 string, ignoring
case, is greater than, equal to, or less than the s2
Upon successful completion, the strncasecmp() function
returns an integer whose value is greater than, equal to,
or less than 0 (zero), according to whether the s1 array
(possibly null-terminated), ignoring case, is greater
than, equal to, or less than the s2 string (possibly nullterminated).
Functions: string(3), strcat(3), strcmp(3), strcpy(3)
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