code: скорость загрузки по сети, вариант

.gitignore

@@ -1,2 +1,3 @@
 /bin
 /obj
+/curl

hist_proc.cpp

@@ -1,6 +1,7 @@
 #include <iostream>
 #include <vector>
 #include "hist_proc.h"
+#include "hist_proc_internal.h"
 using namespace std;
 vector<size_t> make_histogram_proc(const vector<double> numbers, size_t bin_count, vector<size_t> bins){
     vector<size_t> procent(bin_count);

histogram.cpp

@@ -4,11 +4,17 @@
 using namespace std;
 
 
-static void
+bool
 find_minmax(const vector<double>& numbers, double& min, double& max) {
-    min = numbers[0];
-    max = numbers[0];
-    for (double x : numbers) {
+    bool flag;
+    if (numbers.size() == 0){
+        flag=false;
+
+    }
+    else {
+        min = numbers[0];
+        max = numbers[0];
+        for (double x : numbers) {
         if (x < min) {
             min = x;
         }
@@ -18,6 +24,9 @@ find_minmax(const vector<double>& numbers, double& min, double& max) {
     }
 }
 
+   return flag;
+}
+
 vector<size_t> make_histogram(const vector<double> numbers, size_t bin_count){
     vector<size_t> bins(bin_count);
     double max, min = 0;

lab003.cbp

@@ -13,7 +13,11 @@
 				<Option compiler="gcc" />
 				<Compiler>
 					<Add option="-g" />
+					<Add directory="curl/include" />
 				</Compiler>
+				<Linker>
+					<Add library="curl/include" />
+				</Linker>
 			</Target>
 			<Target title="Release">
 				<Option output="bin/Release/lab003" prefix_auto="1" extension_auto="1" />
@@ -31,7 +35,11 @@
 		<Compiler>
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
+			<Add directory="curl/include" />
 		</Compiler>
+		<Linker>
+			<Add directory="curl/include" />
+		</Linker>
 		<Unit filename="hist_proc.cpp" />
 		<Unit filename="hist_proc.h" />
 		<Unit filename="histogram.cpp" />

main.cpp

@@ -5,6 +5,8 @@
 #include "histogram.h"
 #include <text.h>
 #include <svg.h>
+#include <curl/curl.h>
+#include <sstream>
 
 
 
@@ -20,30 +22,95 @@ struct Input {
 
 
 Input
-input_data() {
+input_data(istream& in, bool prompt) {
+    if (prompt == true){
     size_t number_count;
-    cin >> number_count;
-    Input in;
-    in.numbers.resize(number_count);
+    cerr << "input number count";
+    in >> number_count;
+    Input inn;
+    inn.numbers.resize(number_count);
     vector<double> numbers(number_count);
+    cerr << "input numbers";
     for (size_t i = 0; i < number_count; i++) {
-        cin >> in.numbers[i];
+        in >> inn.numbers[i];
     }
 
 size_t bin_count;
-cin >> in.bin_count;
-return in;
+cerr << "input amount of bins";
+in >> inn.bin_count;
+return inn;
+    }
+    else {
+    size_t number_count;
+    cout << "input number count";
+    in >> number_count;
+    Input inn;
+    inn.numbers.resize(number_count);
+    vector<double> numbers(number_count);
+    cout << "input numbers";
+    for (size_t i = 0; i < number_count; i++) {
+        in >> inn.numbers[i];
+    }
+
+    size_t bin_count;
+    cout << "input amount of bins";
+    in >> inn.bin_count;
+    return inn;
+    }
+}
+
+static 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;
+}
+
+Input
+download(const string& address, bool proverka_skorosti) {
+    stringstream buffer;
+    CURL* curl = curl_easy_init();
+    if(curl)
+    {
+        CURLcode res;
+        const char* res2;
+        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) {
+        curl_off_t speed;
+      res = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD_T, &speed);
+        if(!res) {
+        cerr << "Upload speed "<< speed << " bytes/sec\n";
+
+                }
+            }
+
+    curl_easy_cleanup(curl);
+    }
+    curl_global_init(CURL_GLOBAL_ALL);
+    return input_data(buffer, true);
+
 }
 
 
 
-
-int main()
+int main(int argc, char* argv[])
 {
-    auto in = input_data();
+
+    Input in;
+    CURL *curl = curl_easy_init();
+    if (argc > 1) {
+     in = download(argv[1], false);
+    } else {
+        in = input_data(cin, true);
+    }
     auto bins = make_histogram(in.numbers, in.bin_count);
     auto procent = make_histogram_proc(in.numbers, in.bin_count, bins);
     show_histogram_svg(bins, procent);
 
     return 0;
 }
+

unittest4var.cpp

@@ -9,4 +9,9 @@ TEST_CASE("distinct positive numbers") {
     CHECK(procent[0] == 33);
     CHECK(procent[1] == 33);
     CHECK(procent[2] == 34);
+
+    procent = make_histogram_proc({1}, 3, {1, 0, 0});
+    CHECK(procent[0] == 100);
+    CHECK(procent[1] == 0);
+    CHECK(procent[2] == 0);
 }