code: fix2

.gitignore

@@ -0,0 +1,6 @@
+/bin
+/obj
+03-scaling.input.txt
+LAB1.layout
+main.exe
+/curl

histogram.cpp

@@ -0,0 +1,44 @@
+#include "histogram.h"
+
+void
+find_minmax(std::vector<double>& numbers, double& min, double& max){
+    min = numbers[0];
+    max = numbers[0];
+
+    for (double x : numbers) {
+        if (x < min) {
+            min = x;
+        }
+        else if (x > max) {
+            max = x;
+        }
+    }
+}
+
+
+std::vector<size_t>
+make_histogram(std::vector<double>& numbers, size_t bin_count){
+
+    std::vector<size_t> bins(bin_count);
+
+    double min, max;
+    find_minmax(numbers, min, max);
+
+    double bin_size = (max - min) / bin_count;
+
+    for (size_t i = 0; i < numbers.size(); i++) {
+        bool found = false;
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
+            auto lo = min + j * bin_size;
+            auto hi = min + (j + 1) * bin_size;
+            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
+                bins[j]++;
+                found = true;
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+        }
+    }
+    return bins;
+}

histogram.h

@@ -0,0 +1,11 @@
+#ifndef HISTOGRAM_H_INCLUDED
+#define HISTOGRAM_H_INCLUDED
+
+#include <vector>
+
+std::vector<size_t>
+make_histogram(std::vector<double>& numbers, size_t bin_count);
+
+
+
+#endif // HISTOGRAM_H_INCLUDED

histogram_internal.h

@@ -0,0 +1,10 @@
+#ifndef HISTOGRAM_INTERNAL_H_INCLUDED
+#define HISTOGRAM_INTERNAL_H_INCLUDED
+
+#include <vector>
+
+void
+find_minmax(const std::vector<double>& numbers, double& min, double& max);
+
+
+#endif // HISTOGRAM_INTERNAL_H_INCLUDED

lab1.cbp

@@ -2,7 +2,7 @@
 <CodeBlocks_project_file>
 	<FileVersion major="1" minor="6" />
 	<Project>
-		<Option title="LABA 1 IGOR" />
+		<Option title="lab34" />
 		<Option pch_mode="2" />
 		<Option compiler="gcc" />
 		<Build>
@@ -11,32 +11,58 @@
 				<Option object_output="obj/Debug/" />
 				<Option type="1" />
 				<Option compiler="gcc" />
+				<Option projectLinkerOptionsRelation="0" />
 				<Compiler>
 					<Add option="-g" />
+					<Add directory="curl/include" />
 				</Compiler>
+				<Linker>
+					<Add library="libcurl.dll.a" />
+					<Add directory="curl/lib" />
+				</Linker>
 			</Target>
 			<Target title="Release">
 				<Option output="bin/Release/LABA 1 IGOR" prefix_auto="1" extension_auto="1" />
 				<Option object_output="obj/Release/" />
 				<Option type="1" />
 				<Option compiler="gcc" />
+				<Option projectLinkerOptionsRelation="0" />
 				<Compiler>
 					<Add option="-O2" />
+					<Add directory="curl/include" />
 				</Compiler>
 				<Linker>
 					<Add option="-s" />
+					<Add library="libcurl.dll.a" />
+					<Add directory="curl/lib" />
 				</Linker>
 			</Target>
 		</Build>
 		<Compiler>
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
+			<Add directory="curl/include" />
 		</Compiler>
+		<Linker>
+			<Add library="libcurl.dll.a" />
+			<Add directory="curl/lib" />
+		</Linker>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
+		<Unit filename="histogram_internal.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h">
+			<Option link="1" />
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h" />
 		<Extensions>
-			<code_completion />
-			<envvars />
-			<debugger />
 			<lib_finder disable_auto="1" />
 		</Extensions>
 	</Project>

main.cpp

@@ -1,76 +1,81 @@
+#include <curl/curl.h>
+#include <sstream>
+#include <string>
 #include <iostream>
 #include <vector>
+#include "histogram.h"
+#include "svg.h"
 using namespace std;
 
-int main()
-{
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
 
-    size_t number_count, bin_count, i, bin;
-    //cout << "Enter number count: " << endl;
-    cin>>number_count;
-    vector<double> numbers(number_count);
-    //cout<< "Enter numbers: "<<endl;
+Input
+input_data(istream& in, bool prompt){
+    size_t number_count;
+    if (prompt == true) cerr << "Enter number_count: ";
+    in >> number_count;
+
+    Input in1;
+    in1.numbers.resize(number_count);
+    if (prompt == true) cerr << "Enter numbers: ";
     for (size_t i = 0; i < number_count; i++){
-        cin>>numbers[i];
+        in >> in1.numbers[i];
     }
-    double min = numbers[0];
-    double max = numbers[0];
-    for (double x : numbers) {
-        if (x < min) {
-            min = x;
-        }
-        else if (x > max) {
-            max = x;
+
+    if (prompt == true) cerr << "Enter bin count: ";
+    in >> in1.bin_count;
+
+    return in1;
+}
+
+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) {
+    stringstream buffer;
+
+    curl_global_init(CURL_GLOBAL_ALL);
+    CURL *curl = curl_easy_init();
+    if(curl) {
+        CURLcode res, res1;
+        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);
+        curl_easy_cleanup(curl);
+        if (res != CURLE_OK){
+            curl_off_t speed;
+            res1 = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD_T, &speed);
+            if(!res1){
+                cout << "Upload speed bytes/sec\n" << speed;
+                exit(1);
+            }
         }
     }
 
-    //cout<< "Enter bin count: "<<endl;
-    cin>>bin_count;
-    vector<size_t> bins(bin_count);
-    double bin_size = (max - min) / bin_count;
+    return input_data(buffer, false);
+}
 
-    for (size_t i = 0; i < number_count; i++) {
-        bool found = false;
-        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
-            auto lo = min + j * bin_size;
-            auto hi = min + (j + 1) * bin_size;
-            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
-                bins[j]++;
-                found = true;
-            }
-        }
-        if (!found) {
-            bins[bin_count - 1]++;
-            }
-    }
-    size_t height = 0;
-    size_t max_count = 0;
-    for (i = 0; i < bin_count; i++){
-        if (bins[i] > max_count) max_count = bins[i];
-    }
-    /*for(size_t bin:bins){
-        size_t height = bin;
-        height = MAX_ASTERISK * (static_cast<double>(bin) / max_count);
-        if(bin<100) cout<<" ";
-        if(bin<10) cout<<" ";
-        cout<<bin<<"|";
-        for(size_t i = 0; i < height; i++){
-            cout<<"*";
-        }
-        cout<<endl;
-    }*/
-    for(size_t bin:bins){
-        size_t height = bin;
-        height = MAX_ASTERISK * (static_cast<double>(bin) / max_count);
-        for(size_t i = 0; i < height; i++){
-            cout<<"*";
-        }
-        cout<<"|";
-        if(bin<100) cout<<" ";
-        if(bin<10) cout<<" ";
-        cout<<bin<<endl;
+int
+main(int argc, char* argv[])
+{
+    Input input;
+    if (argc > 1) {
+        input = download(argv[1]);
+    } else {
+        input = input_data(cin, true);
     }
+
+    const auto bins = make_histogram(input.numbers, input.bin_count);
+    show_histogram_svg(bins);
     return 0;
 }

svg.cpp

@@ -0,0 +1,61 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#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, string stroke, string fil){
+    cout << "<rect x = '" << x << "' y = '" << y << "' width = '" << width << "' height = '" << height << "' stroke = '" << stroke << "' fill = '" << fil << "' />";
+}
+
+void
+show_histogram_svg(const vector<size_t>& bins) {
+    const auto IMAGE_WIDTH = 400;
+    const auto IMAGE_HEIGHT = 300;
+    const auto IMAGE_LEFT = 20;
+    const auto TEXT_LEFT = 30;
+    const auto TEXT_BASELINE = 20;
+    const auto TEXT_WIDTH = 50;
+    const auto BIN_HEIGHT = 30;
+    const auto BLOCK_WIDTH = 10;
+    svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
+
+    size_t max_count = 0;
+    for (size_t x: bins) {
+        if (x > max_count) {
+                max_count = x;
+        }
+    }
+
+
+    double top = 0;
+    for (size_t bin : bins) {
+        const double bin_width = (IMAGE_WIDTH - TEXT_WIDTH) * bin / max_count;
+        const double text_left = bin_width + TEXT_LEFT;
+        svg_rect(IMAGE_LEFT, top, bin_width, BIN_HEIGHT,"red","#ffeeee");
+        svg_text(text_left, top + TEXT_BASELINE, to_string(bin));
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+}
+

svg.h

@@ -0,0 +1,23 @@
+#ifndef SVG_H_INCLUDED
+#define SVG_H_INCLUDED
+#include <string>
+#include <vector>
+
+void
+svg_begin(double width, double height);
+
+void
+svg_end();
+
+void
+show_histogram_svg(const std::vector<size_t>& bins);
+
+void
+svg_text(double left, double baseline, std::string text);
+
+void
+svg_rect(double x, double y, double width, double height, std::string stroke = "black", std::string fil = "black");
+
+
+
+#endif // SVG_H_INCLUDED

text.cpp

@@ -0,0 +1,36 @@
+#include "text.h"
+#include <iostream>
+
+void
+show_histogram_text(std::vector<size_t>& bins){
+    size_t max_count = 0;
+    for (size_t x: bins) {
+        if (x > max_count) {
+            max_count = x;
+        }
+    }
+    if (max_count > MAX_ASTERISK) {
+        for(size_t bin:bins){
+            size_t height = bin;
+            height = MAX_ASTERISK * (static_cast<double>(bin) / max_count);
+            for(size_t i = 0; i < height; i++){
+                std::cout<<"*";
+            }
+            std::cout<<"|";
+            if(bin<100) std::cout<<" ";
+            if(bin<10) std::cout<<" ";
+            std::cout<<bin<<std::endl;
+        }
+    } else {
+        for(size_t bin:bins){
+            size_t height = bin;
+            for(size_t i = 0; i < height; i++){
+                std::cout<<"*";
+            }
+            std::cout<<"|";
+            if(bin<100) std::cout<<" ";
+            if(bin<10) std::cout<<" ";
+            std::cout<<bin<<std::endl;
+        }
+    }
+}

text.h

@@ -0,0 +1,12 @@
+#ifndef TEXT_H_INCLUDED
+#define TEXT_H_INCLUDED
+
+#include <vector>
+
+const size_t SCREEN_WIDTH = 80;
+const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+
+void
+show_histogram_text(std::vector<size_t>& bins);
+
+#endif // TEXT_H_INCLUDED

unittest.cbp

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="unittest" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/unittest" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-g" />
+				</Compiler>
+			</Target>
+			<Target title="Release">
+				<Option output="bin/Release/unittest" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Release/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-O2" />
+				</Compiler>
+				<Linker>
+					<Add option="-s" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add option="-Wall" />
+		</Compiler>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram_internal.h" />
+		<Unit filename="unittest.cpp" />
+		<Extensions>
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

unittest.cpp

@@ -0,0 +1,12 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "histogram_internal.h"
+
+TEST_CASE("distinct positive numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({-2, -1}, min, max);
+    CHECK(min == -2);
+    CHECK(max == -1);
+}