code: работа с буфером, загруженным по сети

main.cpp

@@ -1,3 +1,5 @@
+#include <sstream>
+#include <string>
 #include <curl/curl.h>
 #include <iostream>
 #include <vector>
@@ -57,14 +59,13 @@ input_data(istream& in, bool prompt) {
 }
 
 
-
-int main(int argc, char* argv[])
-{
-    if (argc>1){
+Input
+download(const string& address) {
+    stringstream buffer;
     CURL *curl = curl_easy_init();
     if(curl) {
         CURLcode res;
-        curl_easy_setopt(curl, CURLOPT_URL, argv[0]);
+        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
         res = curl_easy_perform(curl);
         curl_easy_cleanup(curl);
         if (res!=0){
@@ -72,13 +73,23 @@ int main(int argc, char* argv[])
             exit(1);
             }
         }
+    curl_global_init(CURL_GLOBAL_ALL);
+    return input_data(buffer, false);
 }
 
 
 
-    curl_global_init(CURL_GLOBAL_ALL);
+int main(int argc, char* argv[])
+{
+     Input input;
+    if (argc > 1) {
+        input = download(argv[1]);
+    } else {
+        input = input_data(cin, true);
+    }
+
     auto in = input_data(cin, true);
-    auto bins = make_histogram(in.numbers, in.bin_count, in.number_count, in.max_count);
+    const auto bins = make_histogram(in.numbers, in.bin_count, in.number_count, in.max_count);
     vector<double> test;
     show_histogram_svg(bins, in.max_count, in.bin_count, test);