code: обработка ошибок

.gitignore

@@ -1,3 +1,4 @@
 /bin
 /obj
 /test.layout
+/curl

main.cpp

@@ -1,3 +1,4 @@
+#include <curl/curl.h>
 #include <iostream>
 #include <vector>
 #include "histogram.h"
@@ -14,7 +15,8 @@ struct Input {
 };
 
 Input
-input_data(istream& in) {
+input_data(istream& in, bool prompt) {
+    if (prompt==true){
     Input in;
     cerr << "Enter number count: ";
     cin >> in.number_count;
@@ -32,13 +34,50 @@ input_data(istream& in) {
     size_t max_count;
     in.max_count = 0;
     return in;
+    }
+
+    if (prompt==false){
+    Input in;
+
+    cin >> in.number_count;
+
+    vector<double> numbers(in.number_count);
+    in.numbers.resize(in.number_count);
+    for (size_t i = 0; i < in.number_count; i++) {
+        cin >> in.numbers[i];
+    }
+
+    size_t bin_count;
+    cin >> in.bin_count;
+
+    size_t max_count;
+    in.max_count = 0;
+    return in;
+    }
 }
 
 
 
-int main()
+int main(int argc, char* argv[])
 {
-    auto in = input_data(cin);
+    if (argc>1){
+    CURL *curl = curl_easy_init();
+    if(curl) {
+        CURLcode res;
+        curl_easy_setopt(curl, CURLOPT_URL, argv[0]);
+        res = curl_easy_perform(curl);
+        curl_easy_cleanup(curl);
+        if (res!=0){
+            cout<<res;
+            exit(1);
+        }
+  }
+}
+
+
+
+    curl_global_init(CURL_GLOBAL_ALL);
+    auto in = input_data(cin, true);
     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);