code: скорость загрузки по сети, вариант

.gitignore

@@ -0,0 +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);

hist_proc.h

@@ -0,0 +1,7 @@
+#ifndef HIST_PROC_H_INCLUDED
+#define HIST_PROC_H_INCLUDED
+
+std::vector<size_t>
+make_histogram_proc(const std::vector<double> numbers, size_t bin_count, std::vector<size_t> bins);
+
+#endif // HIST_PROC_H_INCLUDED

hist_proc_internal.h

@@ -0,0 +1,7 @@
+#ifndef HIST_PROC_INTERNAL_H_INCLUDED
+#define HIST_PROC_INTERNAL_H_INCLUDED
+
+std::vector<size_t>
+make_histogram_proc(const std::vector<double> numbers, size_t bin_count, std::vector<size_t> bins);
+
+#endif // HIST_PROC_INTERNAL_H_INCLUDED

histogram.cpp

@@ -4,8 +4,14 @@
 using namespace std;
 
 
-static void
+bool
 find_minmax(const vector<double>& numbers, double& min, double& max) {
+    bool flag;
+    if (numbers.size() == 0){
+        flag=false;
+
+    }
+    else {
         min = numbers[0];
         max = numbers[0];
         for (double x : numbers) {
@@ -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;

histogram.h

@@ -0,0 +1,9 @@
+#ifndef HISTOGRAM_H_INCLUDED
+#define HISTOGRAM_H_INCLUDED
+#include <iostream>
+#include <vector>
+
+std::vector<size_t>
+make_histogram(const std::vector<double> numbers, size_t bin_count);
+
+#endif // HISTOGRAM_H_INCLUDED

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" />
@@ -31,13 +35,21 @@
 		<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" />
 		<Unit filename="histogram.h" />
 		<Unit filename="histogram_internal.h" />
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Unit filename="text.cpp" />
 		<Unit filename="text.h" />
 		<Extensions>

main.cpp

@@ -1,9 +1,12 @@
 #include <iostream>
 #include <vector>
+#include <string>
 #include <hist_proc.h>
 #include "histogram.h"
 #include <text.h>
-
+#include <svg.h>
+#include <curl/curl.h>
+#include <sstream>
 
 
 
@@ -19,28 +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];
     }
 
-int main()
+    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)
     {
-    auto in = input_data();
+        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 argc, char* argv[])
+{
+
+    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(in.bin_count, bins, procent);
-
+    show_histogram_svg(bins, procent);
 
     return 0;
 }
+

svg.cpp

@@ -0,0 +1,88 @@
+#include <iostream>
+#include <vector>
+#include <string>
+#include <svg.h>
+
+using namespace std;
+
+void
+svg_begin(double width, double height) {
+    cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    cout << "<svg ";
+    cout << "width='" << width << "' ";
+    cout << "height='" << height << "' ";
+    cout << "viewBox='0 0 " << width << " " << height << "' ";
+    cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void
+svg_end() {
+    cout << "</svg>\n";
+}
+
+void
+svg_text(double left, double baseline, string text) {
+    cout << "<text x='"<< left << "' y='"<< baseline <<"'        > "<< text <<" </text>";
+}
+
+void
+svg_rect(double x, double y, double width, double height){
+    cout << "<rect x='"<<x<<"' y='"<<y<<"' width='"<<width<<"' height='"<<height<<"' stroke ='cyan' fill='#fce166' />\n";
+}
+
+void
+svg_procent(double left_procent, double baseline, string text) {
+    cout << "<text x='"<< left_procent << "' y='"<< baseline << "'> "<< text <<"% </text>";
+}
+
+void
+show_histogram_svg(const vector<size_t>& bins, const vector<size_t>& procent) {
+    const auto IMAGE_WIDTH = 400;
+    const auto IMAGE_HEIGHT = 300;
+    const auto TEXT_LEFT = 20;
+    const auto TEXT_BASELINE = 20;
+    const auto TEXT_WIDTH = 50;
+    const auto BIN_HEIGHT = 30;
+    const auto BLOCK_WIDTH = 10;
+
+    const double SCALE = IMAGE_WIDTH - TEXT_WIDTH;
+    svg_begin(800, 300);
+
+
+    double max_count = 0;
+    for (double x: bins) {
+        if (x > max_count) {
+                max_count = x;
+        }
+    }
+
+    double top = 0;
+    if ((max_count*BLOCK_WIDTH)>SCALE){
+    for (size_t i = 0; i < bins.size(); i++) {
+        const double bin_width = SCALE * ( bins[i] / max_count);
+        const auto TEXT_LEFT_PROCENT = SCALE+TEXT_WIDTH+20;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
+        svg_procent(TEXT_LEFT_PROCENT, top + TEXT_BASELINE, to_string(procent[i]));
+        top += BIN_HEIGHT;
+        cout << endl;
+        cout << bin_width;
+    }
+    }
+    else{
+        for (size_t i = 0; i < bins.size(); i++) {
+        const double bin_width = BLOCK_WIDTH * bins[i];
+        const auto TEXT_LEFT_PROCENT = (max_count * BLOCK_WIDTH)+TEXT_WIDTH+20;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bins[i]));
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
+        svg_procent(TEXT_LEFT_PROCENT, top + TEXT_BASELINE, to_string(procent[i]));
+        top += BIN_HEIGHT;
+        cout << endl;
+        cout << bin_width;
+}
+    }
+    svg_end();
+
+}
+
+

svg.h

@@ -0,0 +1,7 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+
+void
+show_histogram_svg(const std::vector<size_t>& bins, const std::vector<size_t>& procent);
+
+#endif // SVG_H_INCLUDED

text.h

@@ -0,0 +1,7 @@
+#ifndef TEXT_H_INCLUDED
+#define TEXT_H_INCLUDED
+
+void
+show_histogram(size_t bin_count, std::vector<size_t> bins, std::vector<size_t> procent);
+
+#endif // TEXT_H_INCLUDED

unittest4var-2.cpp

@@ -0,0 +1,12 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "hist_proc_internal.h"
+
+TEST_CASE("distinct positive numbers") {
+    std::vector<size_t> procent(3);
+    procent = make_histogram_proc({1}, 3, {1, 0, 0});
+    CHECK(procent[0] == 100);
+    CHECK(procent[1] == 0);
+    CHECK(procent[2] == 0);
+}

unittest4var.cpp

@@ -0,0 +1,17 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "hist_proc_internal.h"
+
+TEST_CASE("distinct positive numbers") {
+    std::vector<size_t> procent(4);
+    procent = make_histogram_proc({1, 2, 3}, 3, {1, 1, 1});
+    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);
+}