53 lines
872 B
Markdown
53 lines
872 B
Markdown
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---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: curl_free
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Section: 3
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Source: libcurl
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See-also:
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- curl_easy_escape (3)
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- curl_easy_unescape (3)
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---
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# NAME
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curl_free - reclaim memory that has been obtained through a libcurl call
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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void curl_free(void *ptr);
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~~~
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# DESCRIPTION
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curl_free reclaims memory that has been obtained through a libcurl call. Use
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curl_free(3) instead of free() to avoid anomalies that can result from
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differences in memory management between your application and libcurl.
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Passing in a NULL pointer in *ptr* makes this function return immediately
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with no action.
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# EXAMPLE
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~~~c
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int main(void)
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{
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char *width = curl_getenv("COLUMNS");
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if(width) {
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/* it was set! */
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curl_free(width);
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}
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}
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~~~
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# AVAILABILITY
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Always
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# RETURN VALUE
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None
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