fork(2) download 
  1. #include <iostream>
  2. #include <string.h>
  3.  
  4. using namespace std;
  5.  
  6. template<size_t N>
  7. constexpr size_t strlen_(const char (&data)[N]) noexcept{
  8.     return N - 1;
  9. }
  10.  
  11. int main()
  12. {
  13. 	const char hello_world[] = {'a','b','\0','e','f'};
  14. 	cout << strlen_(hello_world) << endl; // Wrong. Even if the zero was not there.
  15. 	cout << strlen(hello_world) << endl;
  16.  
  17. 	// your code goes here
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin 
Standard input is empty
stdout 
4
2
https://ideone.com/PNNeaX
language:
C++14 (gcc 8.3)
created:
8 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!