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  1. #include <iostream>
  2. #include <cstring>
  3. #include <stdlib.h>
  4. using namespace std;
  5.  
  6. long double mstold(char str[])
  7. {
  8.     const int NUM_LEN = 100;
  9.     char number[NUM_LEN];
  10.     int str_len = strlen(str);
  11.     int j = 0;
  12.     for(int i = 0; i < str_len; ++i)
  13.     {
  14.         if(str[i] >= '0' && str[i] <= '9')
  15.             number[j++] = str[i];
  16.     }
  17.     number[j] = '\0';
  18.     long double result_num = strtold(number, NULL);
  19.     return result_num;
  20. }
  21.  
  22. int main()
  23. {
  24.     const int STR_SIZE = 128;
  25.     char choice;
  26.     do
  27.     {
  28.         char str[STR_SIZE];
  29.         cout << "Enter a money string: ";
  30.         cin >> str;
  31.  
  32.         cout << str << endl;
  33.  
  34.         long double dd = mstold(str);
  35.         cout << dd << endl;
  36.  
  37.         cout << "One more try? (y/n) ";
  38.         cin >> choice;
  39.     } while(choice == 'y');
  40.     return EXIT_SUCCESS;
  41. }
Success #stdin #stdout 0s 3344KB
comments (?)
stdin
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323.45 n
stdout
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Enter a money string: 323.45
32345
One more try? (y/n)
https://ideone.com/iFU88h
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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