Function read_memory_callback

include/curl_ios.h:47–52

Default in-memory read callback.

    // Default in-memory read callback.
    size_t read_memory_callback(void *contents, size_t size, size_t nmemb, void *userp) {
        const size_t realsize = size * nmemb;
        auto* const mem = static_cast<std::istream*>(userp);
        mem->read(static_cast<char*>(contents), realsize);
        return static_cast<size_t>(mem->gcount());
    }
}

namespace curl {