Runtime Error Check Failure

[ealforque]

Can someone explain why this produce errors..

char temp[] = "";

temp[0] = 'a';
temp[1] = 'b';
temp[2] = 'c';
temp[3] = '\0';

please advice. thanks

[hamsterman]

Size of temp is just one char. If you try to write more, you go out of bounds and thus get an error.
You should declare char temp[4];
Though if you want work with strings, you should use std::string.

[ealforque]

thanks. how about this? this displays an access violation(unhandled exception)

char* temp = "";

temp[0] = 'a';
temp[1] = 'b';
temp[2] = 'c';
temp[3] = '\0';

[ealforque]

and by the way.. in that way. how can i make the variable temp be dynamic in such a way that i will not anymore set the size of the array..

thanks.. please advice.

[hamsterman]

The second one is no better. The type of string literals is const char*, even though compilers allow assigning them to normal char*. The thing is that you can't write to them at all. And even if you could, you'd still be writing out of bounds.
As I said, use std::string. You won't be able to immediately write wherever you want,but you car resize them at any time.