Basic help needed with pointers
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Published on 2010-03-15T08:34:47Z
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2010/03/15
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Hi, i asked some time ago on an account i cant remember how to manipulate basic pointers and someone gave me a really good demo
for example
char *ptr = hello (hello = a char array)
so now *ptr is pointing at h
ptr++ = moves the ptr to point at the next element, to get its value i do *ptr and that gives me e
ok so far i hope :D but now i need to manipulate a char **ptr and was wondering how i do this in a way that mimmicks the effects of a 2d array?
some basic tips would be much appreciated as i need to do an assignment that has a **ptr to immitate a 2d array and without knowing how it does this first means i cant even solve it on paper (for example, how do you dereference a **ptr, how do you get [x][y] values etc)
thanks
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