code: for my var

l03.cpp

@@ -4,73 +4,113 @@
 #include "svg.h"
 #include "text.h"
 #include <curl/curl.h>
-
-
+#include <sstream>
+#include <string>
 
 using namespace std;
 
-//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 IMAGE_WIDTH{};
-    
 };
 
-Input 
-input_data(istream& in, bool promt)
-{   
+Input input_data(istream &in, bool promt)
+{
 
-    size_t number_count, bin_count, IMAGE_WIDTH;
+    size_t number_count, bin_count;
 
-    if (promt) cerr << "Enter number count: ";
+    if (promt)
+    {
+        cerr << "Enter number count: ";
+    }
     in >> number_count;
 
     Input input;
 
-    
-    
-    if (promt) cerr << " Input width of image, > 70 but not >800 : ";
-    in >> input.IMAGE_WIDTH;
-    if(input.IMAGE_WIDTH < 70 || input.IMAGE_WIDTH > 800 ) {
-        while(input.IMAGE_WIDTH < 70 || input.IMAGE_WIDTH > 800) {
-            if (promt) cerr << " Input width of image, >70 but not >800 : ";
-            in >> input.IMAGE_WIDTH;
-        }
+    input.numbers.resize(number_count);
+    if (promt)
+    {
+        cerr << "Enter numbers: ";
     }
-  
-
-    //size_t number_count = in.number_counts;
-
-    input.numbers.resize( number_count );
-    if (promt) cerr << "Enter numbers: ";
-    // vector<double> numbers(number_count);
 
     for (size_t i = 0; i < number_count; i++)
     {
         in >> input.numbers[i];
     }
 
-    if (promt) cerr << "Count of baskets: ";
+    if (promt)
+    {
+        cerr << "Count of baskets: ";
+    }
     in >> input.bin_count;
 
     return input;
 }
+size_t
+write_data(void *items, size_t item_size, size_t item_count, void *ctx)
+{
+    size_t data_size = item_count * item_size;
+
+    stringstream *buffer = reinterpret_cast<stringstream *>(ctx);
+    char *item = reinterpret_cast<char *>(items);
+    //(*buffer).write(item, data_size);
+    buffer->write(item, data_size);
+
+    return data_size;
+}
+
+Input download(const string &address)
+{
+    stringstream buffer;
+
+    // address.c_str();
 
-int main()
-{   
     curl_global_init(CURL_GLOBAL_ALL);
+    {
+        CURL *curl = curl_easy_init();
+        if (curl)
+        {
+            CURLcode res;
+            double total;
+            curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+            curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
 
-    auto input = input_data(cin, true);
-    auto bins = make_histogram( input.numbers, input.bin_count );
-    //int chek_block_width(in.IMAGE_WIDTH);
-    //chek_block_width(in.IMAGE_WIDTH, in.number_count);
-    //if (chek_block_width==1)
-    show_histogram_svg( bins, input.IMAGE_WIDTH );
-    //if(chek_block_width==0) return 0;
-    //show_histogram_svg(bins);
-  
+            res = curl_easy_perform(curl);
+
+            if (res != CURLE_OK)
+            {
+
+                fprintf(stderr, "curl_easy_perform() failed: %s\n",
+                        curl_easy_strerror(res));
+                exit(1);
+            }
+
+            if (CURLE_OK == res)
+            {
+                res = curl_easy_getinfo(curl, CURLINFO_TOTAL_TIME, &total);
+                cerr << "Time spending for downloading file: " << total << endl;
+            }
+            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);
+    }
+
+    const auto bins = make_histogram(input.numbers, input.bin_count);
+    show_histogram_svg(bins);
 }