fork download
copy 
  1. #include <iostream>
  2. #include <cstdlib>
  3. #include <cerrno>
  4. using std::cout;
  5. using std::endl;
  6.  
  7. int main() 
  8. {
  9.     {
  10. 	    errno = 0;
  11. 	    unsigned long long ullval = std::strtoull("-18446744073709551615", nullptr, 10);
  12. 	    cout << "errno:  " << errno   << endl;
  13. 	    cout << "ullval: " << ullval  << endl;
  14.  
  15. 	    cout << -18446744073709551615ULL << endl;
  16.     }
  17.     cout << endl;
  18.     {
  19. 	    errno = 0;
  20. 	    unsigned long long ullval = std::strtoull("-18446744073709551616", nullptr, 10);
  21. 	    cout << "errno:  " << errno   << endl;
  22. 	    cout << "ullval: " << ullval  << endl;
  23.     }
  24.     cout << endl;
  25.     {
  26. 	    errno = 0;
  27. 	    long long llval = std::strtoll("-9223372036854775808", nullptr, 10);
  28. 	    cout << "errno: " << errno  << endl;
  29. 	    cout << "llval: " << llval  << endl;
  30.     }
  31. }
Success #stdin #stdout 0s 4708KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
errno:  0
ullval: 1
1

errno:  34
ullval: 18446744073709551615

errno: 0
llval: -9223372036854775808
https://ideone.com/O2VPZg
language:
C++14 (clang 8.0)
created:
3 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!