NetBSD/lib/libc/string/strdup.3

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.\" Copyright (c) 1990, 1991 The Regents of the University of California.
.\" All rights reserved.
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.\" This product includes software developed by the University of
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.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
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1993-08-01 11:42:49 +04:00
.\" from: @(#)strdup.3 5.3 (Berkeley) 4/19/91
.\" $Id: strdup.3,v 1.2 1993/08/01 07:43:48 mycroft Exp $
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.\"
.Dd April 19, 1991
.Dt STRDUP 3
.Os
.Sh NAME
.Nm strdup
.Nd save a copy of a string
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft char *
.Fn strdup "const char *str"
.Sh DESCRIPTION
The
.Fn strdup
function
allocates sufficient memory for a copy
of the string
.Fa str ,
does the copy, and returns a pointer to it.
The pointer may subsequently be used as an
argument to the function
.Xr free 3 .
.Sh SEE ALSO
.Xr calloc 3
.Xr malloc 3
.Xr realloc 3
.Xr free 3
.Sh HISTORY
The
.Fn strdup
function
.Ud .