Code 1 OUTPUT: 6Code:#include <iostream> //CODE 1 using namespace std; int main() { char c[]="Hello"; //C-style string cout<<sizeof(c); return 0; }
Code 2 OUTPUT: 8Code:#include <iostream> // Code 2 using namespace std; int main() { char *c="Hello"; //C-style string cout<<sizeof(c); return 0; }
Why there is discrepancy between the two?
One is the size of the array.
The other is the size of the pointer.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
To add to what Salem said, those two definitions are entirely different. The first takes the string and copies it inside a local array of the same size, while the second just copies the pointer of the static, global string. In the second case, trying to change any character may result in a crash, because the compiler or OS may decide to put that string in read-only memory. If you ever need to use the global string directly, "const char*" is much more appropriate.
Devoted my life to programming...
