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.TH curl_free 3 "October 25, 2021" "libcurl 7.80.0" "libcurl Manual"

.SH NAME
curl_free - reclaim memory that has been obtained through a libcurl call
.SH SYNOPSIS
.B #include <curl/curl.h>
.sp
.BI "void curl_free( char *" ptr " );"
.ad
.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 will make 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_unescape "(3), " curl_easy_escape "(3) "