вывод гистограммы в svg формате

histogram.cpp

@@ -1,21 +1,16 @@
 #include "histogram.h"
 bool
-find_minmax(std::vector<double> numbers, double& min, double& max) {
+find_minmax(const std::vector<double>& numbers, double& min, double& max) {
-    if(numbers.size() == 0){
-        return false;
-    }
     min = numbers[0];
     max = numbers[0];
     for(double x : numbers){
         if(x<min){
             min=x;
         }
-        else if (x > max)
+        if(x>max){
-        {
             max=x;
         }
     }
-    return true;
 }
 std::vector<size_t>
 make_histogram(const std::vector<double>& numbers,size_t bin_count){

main.cpp

@@ -1,69 +1,31 @@
-#include <curl/curl.h>
-#include <sstream>
-#include <string>
 #include "histogram.h"
 #include "text.h"
 #include <iostream>
 #include <vector>
 #include "svg.h"
-
-
 using namespace std;
 struct Input {
     vector<double> numbers;
     size_t bin_count{};
 };
 Input
-input_data(istream& in,bool promt = false) {
+input_data(){
     size_t number_count;
-    if (promt)
     cerr << "Number_count: ";
-    in >> number_count;
+    cin >> number_count;
-    Input im;
+    Input in;
-    im.numbers.resize(number_count);
+    in.numbers.resize(number_count);
     for (size_t i = 0; i < number_count; i++) {
-        in >> im.numbers[i];
+        cin >> in.numbers[i];
     }
-    if (promt)
     cerr << "Enter bin_count: ";
-    in >> im.bin_count;
+    cin >> in.bin_count;
-    return im;
+    return in;
 }
-size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx){
+int
-    stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
+main() {
-    size_t data_size = item_size * item_count;
+    auto in = input_data();
-    buffer->write(reinterpret_cast<const char*>(items), data_size);
+    auto bins = make_histogram(in.numbers, in.bin_count);
-    return data_size;
-}
-
-Input download(const string& address) {
-    stringstream buffer;
-    CURL *curl = curl_easy_init();
-    if(curl) {
-        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
-        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
-        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
-        CURLcode res = curl_easy_perform(curl);
-        curl_easy_cleanup(curl);
-        if(res != 0){
-            cerr << curl_easy_strerror(res);
-            exit(1);
-        }
-    }
-    return input_data(buffer, false);
-}
-
-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);
-    }
-    auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
     return 0;
 }