Variables

• Initialize variables when you create them. Use initialization instead of assignment when it is more effective.

• Never initialize or instantiate multiple items on the same line.

• Do not declare automatic variables until required.

• Never use static local variables.

Example:

TRect rectangle( 0,0,0,0 );
CTetrisClass* pointer = NULL;

Wrong:

static int a, b, c;
// Static local variables are not allowed, TInt type must be 
// used, variables should be initialized (to zero, for example) 
// and multiple items should not be declared on the same line.