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117 строки
2.6 KiB
C++
117 строки
2.6 KiB
C++
#include <iostream>
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#include <vector>
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#include <curl/curl.h>
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#include "histogram.h"
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#include "text.h"
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#include "svg.h"
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#include <sstream>
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#include <string>
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using namespace std;
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struct Input {
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vector<double> numbers;
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size_t bin_count{};
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size_t number_count;
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};
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Input
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input_data(istream& in, bool prompt){ //& òê íåëüçÿ ñêîïèðîâàòü ïîòîê ââîäà istream óïðàâëÿåò èçâëå÷åíèåì îáúåêòîâ
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setlocale(LC_ALL, "RUSSIAN");
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Input in2;
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//bool prompt = true;
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if (prompt) cerr << "Ââåäèòå êîëè÷åñòâî ÷èñåë: ";
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in >> in2.number_count;
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in2.numbers.resize(in2.number_count);
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if (prompt) cerr << "Ââåäèòå ÷åðåç ïðîáåë ýëåìåíòû ìàññèâà: ";
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vector<double> numbers(in2.number_count);
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for (size_t i = 0; i < in2.number_count; i++) {
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in >> in2.numbers[i];
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}
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if (prompt) cerr << "Ââåäèòå êîëè÷åñòâî êîðçèí: ";
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in >> in2.bin_count;
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return in2;
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};
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size_t
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write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
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size_t data_size = item_size * item_count;
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stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
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buffer->write(reinterpret_cast<const char*>(items), data_size);
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return data_size;
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}
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Input
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download(const string& address) {
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stringstream buffer;
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CURL* curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
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res = curl_easy_perform(curl);
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if(!res){
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curl_off_t speed;
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res = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD_T, &speed);
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if(!res){
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cerr << "Download speed " << speed << endl;
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}
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}
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if(res != CURLE_OK){
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fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
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exit(1);
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}
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curl_easy_cleanup(curl);
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}
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return input_data(buffer, false);
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}
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int
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main(int argc, char* argv[]) {
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Input input;
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if (argc > 1) {
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input = download(argv[1]);
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} else {
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input = input_data(cin, true);
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}
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const auto bins = make_histogram(input.numbers, input.bin_count);
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show_histogram_text(bins, input.number_count, input.bin_count);
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return 0;
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}
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//curl_global_init(CURL_GLOBAL_ALL);
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//auto in = input_data(cin);
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//auto bins = make_histogram(in.numbers, in.bin_count);
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//show_histogram_text(bins, in.number_count, in.bin_count);
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// cin - ïåðåìåííàÿ êîòîðàÿ ïðåäñòàâëÿåò ïîòîê
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