устранены ошибки с библиотекой

main.cpp

@@ -3,6 +3,7 @@
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
+#include <curl/curl.h>
 
 using namespace std;
 
@@ -38,7 +39,8 @@ input_data(istream& in, bool prompt) {
 int
 main()
 {
-    auto in = input_data(cin);
+    curl_global_init(CURL_GLOBAL_ALL);
+    auto in = input_data(cin, true);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
     return 0;

svg.cpp

@@ -30,7 +30,7 @@ void svg_rect(double x, double y, double width, double height, string stroke = "
 
 
 void
-show_histogram_svg(const vector<size_t>& bins, size_t user_block_width) {
+show_histogram_svg(const vector<size_t>& bins) {
 
     const auto IMAGE_WIDTH = 400;
     const auto IMAGE_HEIGHT = 300;
@@ -38,7 +38,7 @@ show_histogram_svg(const vector<size_t>& bins, size_t user_block_width) {
     const auto TEXT_BASELINE = 20;
     const auto TEXT_WIDTH = 50;
     const auto BIN_HEIGHT = 30;
-    const auto BLOCK_WIDTH = user_block_width;
+    const auto BLOCK_WIDTH = 15;
 
     const size_t MAX_WIDTH = IMAGE_WIDTH - TEXT_WIDTH - 1;
 

svg.h

@@ -1,6 +1,6 @@
 #ifndef SVG_H_INCLUDED
 #define SVG_H_INCLUDED
 void
-show_histogram_svg(const std::vector<size_t>& bins, size_t user_block_width);
+show_histogram_svg(const std::vector<size_t>& bins);
 
 #endif // SVG_H_INCLUDED