Need Answer Quick

I passed in a char* into a function and I need to find out how many characters long it is..... how do i do this?

Code:

int length=lstrlen(char *);

As long as you're 100% sure that there is memory allocated for the char* and it contains a '\0', then it should work.

Code:

int function(char *x)
{
     int length = strlen(x);
     return length;
}

Otherwise pass the size along with the char*