...

LR3/.gitignore

@@ -2,3 +2,5 @@
 /obj
 /LR3.depend
 /LR3.layout
+/curl/
+/unittest.layout

LR3/LR3.cbp

@@ -13,7 +13,12 @@
 				<Option compiler="gcc" />
 				<Compiler>
 					<Add option="-g" />
+					<Add directory="C:/Users/daemo/OneDrive/Рабочий стол/lab03/LR3/curl/include" />
 				</Compiler>
+				<Linker>
+					<Add library="libcurl.dll.a" />
+					<Add directory="C:/Users/daemo/OneDrive/Рабочий стол/lab03/LR3/curl/lib" />
+				</Linker>
 			</Target>
 			<Target title="Release">
 				<Option output="bin/Release/LR3" prefix_auto="1" extension_auto="1" />

LR3/histogram.cpp

@@ -5,8 +5,13 @@
 
 using namespace std;
 
-void
+bool
 find_minmax(vector<double> numbers, double& min, double& max) {
+      if (numbers.empty()) {
+        min = max = 0;
+        return false;
+    }
+    else{
     min = numbers[0];
     max = numbers[0];
     for (double x : numbers) {
@@ -17,6 +22,8 @@ find_minmax(vector<double> numbers, double& min, double& max) {
             max = x;
         }
     }
+    return true;
+    }
 }
 
 vector<size_t>

LR3/histogram_internal.h

@@ -5,5 +5,5 @@
 
 using namespace std;
 
-void
+bool
 find_minmax(vector<double> numbers, double& min, double& max);

LR3/main.cpp

@@ -3,33 +3,94 @@
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
+#include <curl/curl.h>
+#include <sstream>
+#include <string>
+
 
 using namespace std;
 
 
+
+
 struct Input{
 vector<double> numbers;
     size_t bin_count{};
 };
 
 Input
-input_data(){
-    Input in;
-    size_t number_count;
-    cin >> number_count;
-    in.numbers.resize(number_count);
-    for (size_t i = 0; i < number_count; i++) {
-        cin >> in.numbers[i];
-    }
-    cin >> in.bin_count;
-    return in;
-}
-
-
-
-int main()
+input_data(istream& in, bool prompt)
 {
-    auto in = input_data();
-    auto bins = make_histogram(in.numbers, in.bin_count);
+    Input cin;
+    string numbCntPrmt, numbsPrmt, binCntPrmt;
+    if (prompt == true) {
+        numbCntPrmt = "Enter number count: ";
+        numbsPrmt = "Enter numbers: ";
+        binCntPrmt = "Enter bin count: ";
+    }
+    size_t number_count;
+    cerr << numbCntPrmt;
+    in >> number_count;
+    cin.numbers.resize(number_count);
+
+    vector<double> numbers(number_count);
+
+    cerr << numbsPrmt;
+    for (size_t i = 0; i < number_count; i++)
+    {
+        in >> cin.numbers[i];
+    }
+
+    cerr << binCntPrmt;
+    in >> cin.bin_count;
+    return cin;
+}
+
+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* curl = curl_easy_init();
+    if(curl){
+        CURLcode res;
+        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 ul;
+            res = curl_easy_getinfo(curl, CURLINFO_SIZE_DOWNLOAD_T, &ul);
+        }
+
+        if (res != 0){
+            cerr << curl_easy_strerror(res);
+            exit(1);
+        }
+        curl_easy_cleanup(curl);
+    }
+    return input_data(buffer, false);
+}
+
+
+
+
+int main(int argc, char* argv[])
+{
+    Input input;
+    if (argc > 1) {
+        input = download(argv[1]);
+    } else {
+        input = input_data(cin, true);
+    }
+    auto bins = make_histogram(input.numbers, input.bin_count);
     show_histogram_svg(bins);
 }

LR3/svg.cpp

@@ -2,6 +2,7 @@
 #include <string>
 using namespace std;
 
+
 svg_begin(double width, double height) {
     cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
     cout << "<svg ";
@@ -11,6 +12,7 @@ svg_begin(double width, double height) {
     cout << "xmlns='http://www.w3.org/2000/svg'>\n";
 }
 
+
 void svg_end() {
     cout << "</svg>\n";
 }
@@ -19,6 +21,7 @@ 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 = "black", string fill = "black")
 {
     cout << "<rect x='" << x << "' y='" << y << "' width='" << width

LR3/unittest.cpp

@@ -27,3 +27,18 @@ TEST_CASE("
     CHECK(min == -2);
     CHECK(max == -1);
 }
+
+TEST_CASE("îäèíàêîâûå ÷èñëà")
+{
+    double min = 0;
+    double max = 0;
+    find_minmax({1, 1}, min, max);
+    CHECK(min == max);
+}
+
+TEST_CASE("distinct equals numbers")
+{
+    double min = 0;
+    double max = 0;
+    CHECK(!find_minmax({}, min, max));
+}

LR3/unittest.depend

@@ -1,5 +1,5 @@
 # depslib dependency file v1.0
-1748202161 source:c:\users\daemo\onedrive\Ðàáî÷èé ñòîë\lab03\lr3\histogram.cpp
+1748284319 source:c:\users\daemo\onedrive\Ðàáî÷èé ñòîë\lab03\lr3\histogram.cpp
 	"histogram.h"
 	"histogram_internal.h"
 	<vector>
@@ -7,6 +7,6 @@
 1748199863 c:\users\daemo\onedrive\Ðàáî÷èé ñòîë\lab03\lr3\histogram.h
 	<vector>
 
-1748202619 c:\users\daemo\onedrive\Ðàáî÷èé ñòîë\lab03\lr3\histogram_internal.h
+1748284462 c:\users\daemo\onedrive\Ðàáî÷èé ñòîë\lab03\lr3\histogram_internal.h
 	<vector>