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.TH LIBSIMPLE_STRCASESTR 3 2018-10-23 libsimple
.SH NAME
libsimple_strcasestr \- find a substring in a string
.SH SYNOPSIS
.nf
#include <libsimple.h>
char *libsimple_strcasestr(const char *\fIhaystack\fP, const char *\fIneedle\fP);
#ifndef strcasestr
# define strcasestr libsimple_strcasestr
#endif
.fi
.PP
Link with
.IR \-lsimple .
.SH DESCRIPTION
The
.BR libsimple_strcasestr ()
function scans the string
.I haystack
the first occurrence of the substring
.IR needle .
.PP
The comparison is case-insensitive.
.SH RETURN VALUE
The
.BR libsimple_strcasestr ()
function returns the pointer
.I haystack
with a minimal offset such that
.I !*r
begins with
.IR needle ,
where
.I r
is the returned pointer.
If no such offset exists,
.B NULL
is returned.
.SH ERRORS
The
.BR libsimple_strcasestr ()
function cannot fail.
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
.TS
allbox;
lb lb lb
l l l.
Interface Attribute Value
T{
.BR libsimple_strcasestr ()
T} Thread safety MT-Safe
T{
.BR libsimple_strcasestr ()
T} Async-signal safety AS-Safe
T{
.BR libsimple_strcasestr ()
T} Async-cancel safety AC-Safe
.TE
.SH EXAMPLES
None.
.SH APPLICATION USAGE
None.
.SH RATIONALE
None.
.SH FUTURE DIRECTIONS
None.
.SH NOTES
None.
.SH BUGS
None.
.SH SEE ALSO
.BR libsimple_strrcasestr (3),
.BR libsimple_strncasestr (3),
.BR libsimple_memcasemem (3),
.BR strstr (3)
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