.\"   Part of publib.
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.\"   Copyright (c) 1994-2006 Lars Wirzenius.  All rights reserved.
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.\" part of publib
.\" "@(#)publib-strutil:$Id: strrstr.3,v 1.1.1.1 1994/02/03 17:25:29 liw Exp $"
.\"
.TH STRRSTR 3pub "C Programmer's Manual" Publib "C Programmer's Manual"
.SH NAME
strrstr \- locate last occurrence of substring
.SH SYNOPSIS
.nf
#include <publib.h>
char *\fBstrrstr\fR(const char *\fIstr\fR, const char *\fIpat\fR);
.SH DESCRIPTION
\fIstrrstr\fR finds the last occurrence of the string \fIpat\fR in
the string \fIstr\fR.  The terminating '\\0' characters are not
compared.
.SH "RETURN VALUE"
\fIstrrstr\fR returns a pointer to the first character of the substring,
or \fBNULL\fR if the substring is not found.
.SH EXAMPLE
To print out everything on each line starting with the last occurrence
of "/* " on each line, you might use the following code:
.sp 1
.nf
.in +5
#include <stdio.h>
#include <publib.h>

int main(void) {
	char *p, line[512];

	while (fgets(line, sizeof(line), stdin) != NULL) {
		p = strrstr(line, "/* ");
		if (p != NULL)
			printf("%s", p);
	}
	return 0;
}
.in -5
.SH "SEE ALSO"
publib(3), string(3), strstr(3)
.SH AUTHOR
Lars Wirzenius (lars.wirzenius@helsinki.fi)