main: исправление ошибок с cURL

main.cpp

@@ -5,6 +5,7 @@
 #include <vector>
 #include "histogram.h"
 #include "text.h"
+#include "svg.h"
 
 using namespace std;
 
@@ -18,12 +19,12 @@ using namespace std;
 
 //  Ââîä îöåíêîê ñ êëàâèàòóðû.
 
-Input
-input_data(istream& in, bool prompt)
+Input input_data(istream& in, bool prompt)
 {
     Input local;
     size_t number_count;
 
+    if (prompt)
         cerr << "Enter number count: ";
     in >> number_count;
     local.numbers.resize(number_count);
@@ -35,10 +36,20 @@ input_data(istream& in, bool prompt)
     return local;
 }
 
+// Ñîõðàíåíèå ôàéëà èç ñåòè â áóôåð.
+
+size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx)
+{
+    size_t data_size = item_size * item_count;
+
+    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
+    (*buffer).write(reinterpret_cast<const char*>(items), data_size);
+    return data_size;
+}
+
 // Çàãðóçêà ôàéëà èç ñåòè â áóôåð.
 
-Input
-download(const string& address)
+Input download(const string& address)
 {
     stringstream buffer;
 
@@ -46,7 +57,9 @@ download(const string& address)
     if(curl)
         {
             CURLcode res;
-            curl_easy_setopt(curl, CURLOPT_URL, address);
+            curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+            curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
             res = curl_easy_perform(curl);
             if (res != CURLE_OK)
                 {
@@ -58,20 +71,9 @@ download(const string& address)
     return input_data(buffer, false);
 }
 
-// Ñîõðàíåíèå ôàéëà èç ñåòè â áóôåð.
-
-size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx)
-{
-    size_t data_size = item_size * item_count;
-
-    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
-    buffer->write(reinterpret_cast<const char*>(items), data_size);
-    return data_size;
-}
-
-
 int main(int argc, char* argv[])
 {
+    curl_global_init(CURL_GLOBAL_ALL);
     Input input;
     if (argc > 1)
         input = download(argv[1]);
@@ -80,5 +82,7 @@ int main(int argc, char* argv[])
 
     const auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
+
+    return 0;
 }