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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	char s[]="Hello";
  7. 	cout<<s<<endl;
  8. 	cout<<sizeof(s)<<endl;
  9. 	cout<<strlen(s)<<endl;
  10.  
  11. 	strcpy(s, "123456789");
  12. 	cout<<s<<endl;
  13. 	cout<<sizeof(s)<<endl;
  14. 	cout<<strlen(s)<<endl;
  15.  
  16. 	strcat(s, "qwe");
  17. 	cout<<s<<endl;
  18. 	cout<<sizeof(s)<<endl;
  19. 	cout<<strlen(s)<<endl;
  20.  
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 16064KB
comments (?)
stdin 
Standard input is empty
stdout 
Hello
6
5
123456789
6
9
123456789qwe
6
12
https://ideone.com/GtckIA
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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