CURLOPT_READFUNCTION man page: wrong arg passed for CURLOPT_READDATA

[joycepg]

I read this

/* pass in suitable argument to callback */
curl_easy_setopt(curl, CURLOPT_READDATA, uploadthis);

I expected the following

/* pass in suitable argument to callback */
curl_easy_setopt(curl, CURLOPT_READDATA, file);

curl/libcurl version

[curl -V output]

operating system

[jay]

Thanks