curl_slist_free_all - Man Page

#include <curl/curl.h>

void curl_slist_free_all(struct curl_slist *list);

curl_slist_free_all() removes all traces of a previously built curl_slist linked list.

Passing in a NULL pointer in list makes this function return immediately with no action.

Any use of the list after this function has been called and have returned, is illegal.

This functionality affects all supported protocols

int main(void)
{
  CURL *handle;
  struct curl_slist *slist = NULL;

  slist = curl_slist_append(slist, "X-libcurl: coolness");

  if(!slist)
    return -1;

  curl_easy_setopt(handle, CURLOPT_HTTPHEADER, slist);

  curl_easy_perform(handle);

  curl_slist_free_all(slist); /* free the list again */
}

Added in curl 7.1

Nothing.

curl_slist_append(3)

CURLINFO_COOKIELIST(3), CURLINFO_SSL_ENGINES(3), CURLOPT_CONNECT_TO(3), CURLOPT_HTTP200ALIASES(3), CURLOPT_HTTPHEADER(3), CURLOPT_MAIL_RCPT(3), CURLOPT_QUOTE(3), CURLOPT_RESOLVE(3), curl_slist_append(3), libcurl-tutorial(3).