fork download
copy 
  1. #include <iostream>
  2. #include <getopt.h>
  3. using namespace std;
  4.  
  5. int fake_main(int argc, char *argv[])
  6. {
  7.    int flagA = 0;
  8.    int flagB = 0;
  9.  
  10.    while (1) {
  11.     char c;
  12.  
  13.     c = getopt (argc, argv, "a:b:c:");
  14.     if (c == -1) {
  15.         break;
  16.     }
  17.     switch (c) {
  18.     case 'a':
  19.         flagA = 1;
  20.         cout<<optarg<<endl;
  21.         break;
  22.     case 'b':
  23.         flagB = 1;
  24.         cout<<optarg<<endl;
  25.         break;
  26.     case 'c':
  27.         cout<<optarg<<endl;
  28.         break;
  29.    case '?':
  30.     default:
  31.        cout<<"Usage: " << argv[0] << " [-a] [-b <something>].\n";
  32.     }
  33.    if(flagA > 0){
  34.     //do something using the values of flagA and flagC 
  35.    }
  36.    else if(flagB > 0){
  37.       //do something using the values of flagB and flagC
  38.  
  39.    }
  40.  }
  41.  return 0;
  42.  }
  43.  
  44. int main (int argc, char *argv[])
  45. {
  46. 	int ac = 5;
  47. 	char *av[] = {
  48. 		argv[0], "-a", "5", "-c", "some thing", 0
  49. 	};
  50.     return fake_main(ac, av);
  51. }
Success #stdin #stdout 0s 3340KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
5
some thing
https://ideone.com/l99r40
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!