работа с буфером, загруженным по сети

Histogram/main.cpp

@@ -1,10 +1,12 @@
 #include <iostream>
 #include <vector>
-#include "histogram.h"
-#include "text.h"
 #include <string>
 #include <sstream>
 #include <curl/curl.h>
+#include <cstdlib>
+
+#include "histogram.h"
+#include "text.h"
 struct Input{
     std::vector<double> numbers;
     size_t bin_count{};
@@ -36,32 +38,39 @@ Input input_data(std::istream& in, bool prompt) {
     return result;
 };
 
+Input download(const std::string&address){
+    std::stringstream buffer;
+    CURL* curl = curl_easy_init();
+    if(curl) {
 
-using namespace std;
-
-int main(int argc, char* argv[]) {
-    curl_global_init(CURL_GLOBAL_ALL);
-    if (argc>1){
-
-        CURL *curl = curl_easy_init();
+            CURLcode res;
+            curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
 
-        if(curl) {
+            TODO:
 
-            CURLcode res;
-            curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
             res = curl_easy_perform(curl);
 
             if (res != CURLE_OK){
-                cerr << curl_easy_strerror(res);
+                std::cerr << curl_easy_strerror(res);
+                curl_easy_cleanup(curl);
                 exit(1);
             }
             curl_easy_cleanup(curl);
         }
-        return 0;
+    return input_data(buffer, false);
+}
+using namespace std;
+
+int main(int argc, char* argv[]) {
+    curl_global_init(CURL_GLOBAL_ALL);
+    Input input;
+    if (argc > 1) {
+        input = download(argv[1]);
+    } else {
+        input = input_data(cin, true);
     }
 
-    Input in = input_data(std::cin, true);
-    auto bins = make_histogram(in.numbers, in.bin_count);
+    const auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
     return 0;
 }