curl_multi_strerror - Man Page

#include <curl/curl.h>
const char *curl_multi_strerror(CURLMcode errornum);

The curl_multi_strerror() function returns a string describing the CURLMcode error code passed in the argument errornum.

int still_running;

CURLMcode mc = curl_multi_perform(multi_handle, &still_running);
if(mc)
  printf("error: %s\n", curl_multi_strerror(mc));

This function was added in libcurl 7.12.0

A pointer to a null-terminated string.

libcurl-errors(3), curl_easy_strerror(3), curl_share_strerror(3), curl_url_strerror(3)

curl_easy_strerror(3), CURLOPT_ERRORBUFFER(3), curl_share_strerror(3), curl_url_strerror(3), libcurl-errors(3).