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+.TH LIBSIMPLE_STRNCASESTR 3 2018-10-23 libsimple
+.SH NAME
+libsimple_strncasestr \- find a substring in a string
+.SH SYNOPSIS
+.nf
+#include <libsimple.h>
+
+char *libsimple_strncasestr(const char *\fIhaystack\fP, const char *\fIneedle\fP), size_t \fIn\fP;
+
+#ifndef strncasestr
+# define strncasestr libsimple_strncasestr
+#endif
+.fi
+.PP
+Link with
+.IR \-lsimple .
+.SH DESCRIPTION
+The
+.BR libsimple_strncasestr ()
+function scans the string
+.IR haystack ,
+truncated to
+.I n
+bytes unless it is shorter,
+the first occurrence of the substring
+.IR needle .
+.PP
+The comparison is case-insensitive.
+.SH RETURN VALUE
+The
+.BR libsimple_strncasestr ()
+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_strncasestr ()
+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_strncasestr ()
+T}	Thread safety	MT-Safe
+T{
+.BR libsimple_strncasestr ()
+T}	Async-signal safety	AS-Safe
+T{
+.BR libsimple_strncasestr ()
+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_strrncasestr (3),
+.BR libsimple_strnstr (3),
+.BR libsimple_strcasestr (3),
+.BR libsimple_memcasemem (3)