curl_free - Man Page

#include <curl/curl.h>

void curl_free(void *ptr);

curl_free reclaims memory that has been obtained through a libcurl call. Use curl_free(3) 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 ptr makes this function return immediately with no action.

  char *width = curl_getenv("COLUMNS");
  if(width) {
    /* it was set! */
    curl_free(width);
  }

Always

None

curl_easy_unescape(3), curl_easy_escape(3)

curl_easy_escape(3), curl_easy_unescape(3), curl_escape(3), curl_getenv(3), curl_mprintf(3), curl_unescape(3), curl_url_get(3), libcurl-url(3).