Question

If we have a char *hello – and the string is "hello"

and i do

char *ptr;
ptr = hello;

then ptr will be pointing at 'h', correct?

Now I have just done an assignmnet in this and completed it using the following terms

if i wanted to move the pointer to the next chatachter i would just do ptr++. If i wanted to use the value of the pointer for some check, i would use if(*ptr == '\0')...

When i was doing the assignmnets our teacher gave us some pre built methods, and they used stuff like

*string++ = *s++;

ok, so why would we want to do *string (which gets a value) – and combine it with ++

I hope i make sense in explaining what is not clear. Its just I managed to do the whole assignment with ptr++ to move to next element or *ptr to check its value

Answer 1

The idiom *s++ means “take the value pointed to, and switch to the next one”.
This way you can do your check operations in a loop. The assignment *p++ = *q++ copies the value of *q to the place pointed by p, and shifts both p and q to the next place, so the next time you execute *p++ = *q++ the next character will be copied behind the first one. And so on.