code: работа с curl и ошибками

main.cpp

@@ -3,6 +3,7 @@
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
+#include <curl/curl.h>
 
 using namespace std;
 struct Input
@@ -38,18 +39,44 @@ input_data(istream& inn)
     inn >> in.bin_count;
     return in;
 }
+size_t write_data(void* ptr, size_t size, size_t nmemb, void* stream)
+{
+    size_t written = fwrite(ptr, size, nmemb, stdout);
+    return written;
+}
+
 
-int main()
+
+int main(int argc, char* argv[])
 {
-    auto in = input_data(cin);
+    if (argc > 1)
+    {
+        CURL* curl = curl_easy_init();
+        if (curl)
+        {
+            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
 
-    auto bins = make_histogram(in.numbers, in.bin_count);
+            CURLcode res = curl_easy_perform(curl);
+            if (res != CURLE_OK)
+            {
+                cerr << "cURL error: " << curl_easy_strerror(res) << endl;
+            }
 
-    double min, max;
-    double bin_size = (max - min) / in.bin_count;
-    show_histogram_text(bins, in.bin_count, bin_size);
-    //show_histogram_svg(bins);
-    //# Ïåðåìåííûå + íà÷àëî ïðîãðàììû(ââîäû)
+            curl_easy_cleanup(curl);
+        }
+        else
+        {
+            cerr << "curl_easy_init() failed" << endl;
+        }
+        return 0;
+    }
+    curl_global_init(CURL_GLOBAL_ALL);
+    auto in = input_data(cin);
 
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    //show_histogram_text(bins, in.bin_count, bin_size);
+    show_histogram_svg(bins);
+    return 0;
 }
-//  | 3 3 5 5 5 4 4 4 4 4
+