Why do we need to cast variable without assigning it?

Question

Possible Duplicate:
Why cast an unused value to void?

for this C++ code:

MyClass::myFunc(int val)
{
//some code
(void)val;
//somecode
}

why may we need to cast val to void without being assigned to another variable ?

score 1 · Accepted Answer · answered Sep 16 '12 at 13:37

1

This is done to shut up the compiler, warning about an unused variable.

answered Sep 16 '12 at 13:37

Tony The Lion

1

Good stuff, but wouldn't it be better to close duplicates and redirect to the canonical question rather than producing additional, duplicate answers? – Kerrek SB Sep 16 '12 at 13:45
Thanks Tony, really this variable was never used through out the rest of the code .. – Ahmed Adel Sep 16 '12 at 14:02

1 Answers1