'\" t
.\"     Title: function::strpos
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: May 2021
.\"    Manual: A collection of standard string functions
.\"    Source: SystemTap Tapset Reference
.\"  Language: English
.\"
.TH "FUNCTION::STRPOS" "3stap" "May 2021" "SystemTap Tapset Reference" "A collection of standard strin"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
function::strpos \- Returns location of a substring within another string
.SH "SYNOPSIS"
.sp
.nf
    strpos:long(s1:string,s2:string)
.fi
.SH "ARGUMENTS"
.PP
\fIs1\fR
.RS 4
string to search in
.RE
.PP
\fIs2\fR
.RS 4
substring to find
.RE
.SH "DESCRIPTION"
.PP
This function returns location of the first occurence of string
\fIs2\fR
within
\fIs1\fR, namely the return value is 0 in case
\fIs2\fR
is a prefix of
\fIs1\fR\&. If
\fIs2\fR
is not a substring of
\fIs1\fR, then the return value is \-1\&.
.SH SEE ALSO\n 
.IR tapset::string (3stap)