first commit

.gitignore

@@ -0,0 +1,4 @@
+/bin
+/obj
+/test.layout
+

Lab03.cbp

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="Lab03" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/Lab03" 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/Lab03" 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" />
+			<Add option="-fexceptions" />
+		</Compiler>
+		<Unit filename=".gitignore" />
+		<Unit filename="doctest.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" />
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h" />
+		<Extensions>
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

histogram.cpp

@@ -0,0 +1,46 @@
+#include <iostream>
+#include <vector>
+#include "histogram.h"
+    void find_minmax(const 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(const std::vector<double>&numbers, size_t &bin_count, size_t &number_count, size_t &max_count) {
+    double min, max;
+    find_minmax(numbers, min, max);
+    double bin_size = (max - min) / bin_count;
+    std::vector<size_t> bins(bin_count);
+    max_count = bins[0];
+    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 (bins[j] > max_count){
+                max_count = bins[j];
+            }
+        }
+        if (!found){
+            bins[bin_count - 1]++;
+        }
+        if (bins[bin_count - 1] > max_count){
+            max_count = bins[bin_count - 1];
+        }
+    }
+    return bins;
+}

histogram.h

@@ -0,0 +1,5 @@
+#pragma once
+#include <vector>
+
+std::vector<size_t>
+make_histogram(const std::vector<double>&numbers, size_t & bin_count, size_t & number_count, size_t & max_count);

histogram_internal.h

@@ -0,0 +1,4 @@
+#pragma once
+#include <vector>
+
+void find_minmax(const std::vector<double>& numbers, double& min, double& max);

main.cpp

@@ -0,0 +1,51 @@
+#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 number_count{};
+    size_t max_count{};
+};
+
+Input
+input_data() {
+    int x, y, z;
+    int* p = &x;
+    *p = 1;
+    p = &y;
+    Input in;
+    cerr << "Enter number count: ";
+    cin >> in.number_count;
+
+    vector<double> numbers(in.number_count);
+    in.numbers.resize(in.number_count);
+    for (size_t i = 0; i < in.number_count; i++) {
+        cin >> in.numbers[i];
+    }
+
+    size_t bin_count;
+    cerr << "Enter bin count: ";
+    cin >> in.bin_count;
+
+    size_t max_count;
+    in.max_count = 0;
+    return in;
+}
+
+
+
+int main()
+{
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count, in.number_count, in.max_count);
+    vector<double> test;
+    show_histogram_svg(bins, in.max_count, in.bin_count, test);
+
+    return 0;
+}

svg.cpp

@@ -0,0 +1,77 @@
+#include "iostream"
+#include "svg.h"
+
+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;
+
+void svg_begin(double width, double height, std::vector <double>& test)
+{
+    test.push_back(width);
+    test.push_back(height);
+    std::cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
+    std::cout << "<svg ";
+    std::cout << "width='" << width << "' ";
+    std::cout << "height='" << height << "' ";
+    std::cout << "viewBox='0 0 " << width << " " << height << "' ";
+    std::cout << "xmlns='http://www.w3.org/2000/svg'>\n";
+}
+
+void svg_text(double left, double baseline, std::string text)
+{
+    std::cout << "<text x='"<< left <<"' y='"<< baseline <<"'>"<< text <<"</text>";
+}
+
+void svg_rect(double x, double y, double width, double height, std::string stroke = "black", std::string fill = "red")
+{
+    std::cout<< "<rect x='"<< x <<"' y='"<< y <<"' width='"<< width <<"' height='"<< height<<"' stroke='black' fill='red' ></rect>";
+}
+
+void svg_line(double x, double y, double x2, double y2, std::vector <double>& test)
+{
+    test.push_back(x);
+    test.push_back(y);
+    test.push_back(x2);
+    test.push_back(y2);
+    std::cout<<"<line x1='"<< x <<"' y1='"<< y <<"' x2='"<< x2 <<"' y2='"<< y2 <<"' stroke-dasharray = '10 10' stroke='black';stroke-width:4' />";
+}
+
+
+
+void
+show_histogram_svg(const std::vector<size_t>& bins, size_t & max_count, size_t & bin_count, std::vector <double>& test)
+{
+
+    const auto BLOCK_WIDTH = (IMAGE_WIDTH - TEXT_WIDTH)/max_count;
+    svg_begin(IMAGE_WIDTH+4, IMAGE_HEIGHT, test);
+    double top = 4;
+
+    svg_line(TEXT_LEFT, top, IMAGE_WIDTH+5, top, test);
+    svg_line(TEXT_LEFT-10, top, TEXT_LEFT-10, top+3*BIN_HEIGHT, test);
+    svg_line(IMAGE_WIDTH+5, top, IMAGE_WIDTH+5, 2*top+3*BIN_HEIGHT, test);
+    svg_line(TEXT_LEFT, 2*top+3*BIN_HEIGHT, IMAGE_WIDTH+5, 2*top+3*BIN_HEIGHT, test);
+    for (double t : test)
+    {
+        std:: cout << t<< '\n';
+    }
+    for (size_t bin : bins)
+    {
+        const double bin_width = BLOCK_WIDTH * bin;
+        svg_text(TEXT_LEFT, top + TEXT_BASELINE, std::to_string(bin));
+        svg_rect(TEXT_WIDTH+2, top+2, bin_width, BIN_HEIGHT);
+        top += BIN_HEIGHT;
+    }
+    svg_end();
+}
+
+
+
+
+void
+svg_end()
+{
+    std::cout << "</svg>\n";
+}

svg.h

@@ -0,0 +1,10 @@
+#pragma once
+#include <iostream>
+#include <vector>
+
+void show_histogram_svg(const std::vector<size_t>& bins, size_t & max_count, size_t & bin_count, std::vector <double>& test);
+void svg_begin(double width, double height, std::vector <double>& test);
+void svg_text(double left, double baseline, std::string text);
+void svg_rect(double x, double y, double width, double height, std::string stroke, std::string fill);
+void svg_line(double x, double y, double width, double height, std::vector <double>& test);
+void svg_end();

text.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+#include <vector>
+#include "text.h"
+
+void show_histogram_text(std::vector<size_t>& bins, size_t & max_count,size_t & bin_count){
+const size_t SCREEN_WIDTH = 80;
+const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+if (max_count > MAX_ASTERISK){
+        std::vector<size_t> hights(bin_count);
+        for (size_t i = 0; i < bin_count; i++){
+            size_t height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
+            hights[i] = height;
+        }
+
+        for (size_t i = 0; i < bin_count; i++){
+            printf("%3d|", bins[i]);
+            for (size_t j = 0; j < hights[i]; j++){
+                std::cout<<"*";
+            }
+            std::cout<<std::endl;
+        }
+    }
+    else{
+        for (size_t i = 0; i < bin_count; i++)
+        {
+            printf("%3d|", bins[i]);
+            for (size_t j = 0; j < bins[i]; j++){
+                std::cout<<"*";
+            }
+            std::cout << std::endl;
+        }
+    }
+
+}

text.h

@@ -0,0 +1 @@
+

unittest.cbp

@@ -0,0 +1,44 @@
+<?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.h" />
+		<Unit filename="histogram_internal.h" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h" />
+		<Unit filename="unittest.cpp" />
+		<Extensions>
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

unittest.cpp

@@ -0,0 +1,46 @@
+#define DOCTEST_CONFIG_NO_MULTITHREADING
+#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
+#include "doctest.h"
+#include "histogram_internal.h"
+#include <vector>
+#include "svg.h"
+
+TEST_CASE("distinct positive numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 2}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 2);
+}
+
+TEST_CASE("NULL vector") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1,2}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 2);
+}
+TEST_CASE("vector with one elements") {
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 1}, min, max);
+    CHECK(min == 1);
+    CHECK(max == 1);
+}
+TEST_CASE("distinct negative numbers") {
+    double min = 0;
+    double max = 0;
+    find_minmax({-1, -2}, min, max);
+    CHECK(min == -2);
+    CHECK(max == -1);
+}
+
+TEST_CASE("svg_check") {
+size_t max_count = 5;
+size_t bin_count = 3;
+std::vector <double> test;
+std::vector<size_t> bins = {2, 5, 3};
+std::vector <double> prover = {404, 300, 20, 4, 405, 4, 10, 4, 10, 94, 405, 4, 405, 98, 20, 98, 405, 98};
+show_histogram_svg(bins, max_count, bin_count, test);
+CHECK(test==prover);
+}