Pointer-to-structure

[fkheng]

Could someone explain to me what does this sign mean :

"->", i've heard that it is a po inter to structure sign...

When should I use this, and what does it achieve for me?

[stumon]

If you have a pointer to structure, you can use that arrow operator to point to that structure member.

Say you have a structure named blah and a pointer to stucture named ptrStruct which has already been assigned, you can do this to access that structures members.

struct blah {
	int blah1;
	int blah2;
	int blah3;
}

ptrStruct->blah1 = 50;

printf("%d", ptrStruct->blah3);

[WaltP]

If you have a structure called employee, you reference an element in the structure like this:
employee.salary
This references the structure directly

But if the employee is a pointer to the structure, you use:
employee->salary
This references the structure thru a pointer to the structure


Ya beat me, stumon!

[stumon]

lol, by like 23 minutes. ;D