t7x/deps/curl/docs/libcurl/curl_free.3

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.\" **************************************************************************
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.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.se/docs/copyright.html.
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.TH curl_free 3 "12 Aug 2003" "libcurl" "libcurl"
.SH NAME
curl_free - reclaim memory that has been obtained through a libcurl call
.SH SYNOPSIS
.nf
#include <curl/curl.h>
void curl_free(void *ptr);
.fi
.SH DESCRIPTION
curl_free reclaims memory that has been obtained through a libcurl call. Use
\fIcurl_free(3)\fP instead of free() to avoid anomalies that can result from
differences in memory management between your application and libcurl.
Passing in a NULL pointer in \fIptr\fP makes this function return immediately
with no action.
.SH EXAMPLE
.nf
char *width = curl_getenv("COLUMNS");
if(width) {
/* it was set! */
curl_free(width);
}
.fi
.SH AVAILABILITY
Always
.SH RETURN VALUE
None
.SH "SEE ALSO"
.BR curl_easy_escape (3),
.BR curl_easy_unescape (3)