code: Рефакторинг: параметризована функция input_data(std::istream&)

main.cpp

@@ -0,0 +1,73 @@
+#include <curl/curl.h>
+#define CURL_STATICLIB
+#include <iostream>
+#include <vector>
+#include "histogram.h"
+#include "text.h"
+#include "svg.h"
+
+using namespace std;
+
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+    size_t block_width{};
+};
+
+Input input_data(istream& in_stream = cin, bool prompt = true) {
+    Input in;
+    size_t number_count;
+
+    if (prompt) {
+        cerr << "Enter number count: ";
+    }
+    in_stream >> number_count;
+
+    in.numbers.resize(number_count);
+
+    if (prompt) {
+        cerr << "Enter " << number_count << " numbers: ";
+    }
+    for (size_t i = 0; i < number_count; i++) {
+        in_stream >> in.numbers[i];
+    }
+
+    if (prompt) {
+        cerr << "Enter bin count: ";
+    }
+    in_stream >> in.bin_count;
+
+    return in;
+}
+
+vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
+    vector<size_t> bins(bin_count, 0);
+    for (double num : numbers) {
+        size_t index = min(bin_count - 1, static_cast<size_t>(num)); // ïðèìåð
+        bins[index]++;
+    }
+    return bins;
+}
+}
+
+int main(int argc, char* argv[]) {
+    if (argc > 1) {
+        cout << "argc = " << argc << endl;
+        for (int i = 0; i < argc; ++i) {
+            cout << "argv[" << i << "] = \"" << argv[i] << "\"" << endl;
+        }
+        return 0;
+    }
+
+    CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
+    if (res != CURLE_OK) {
+        cerr << "cURL initialization failed: " << curl_easy_strerror(res) << endl;
+        return 1;
+    }
+
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    show_histogram_svg(bins, in.block_width);
+
+    curl_global_cleanup();
+}