Annoying warning: statement with no effect

FROM : Jonathan Jackel
DATE : Mon Nov 11 20:39:22 2002

Several of the for loops in my projects are generating a compiler warning
stating "statement with no effect".  But the statements all have effects and
behave as intended.  For instance:

for (r = [addRowsField intValue]; r--; r == 0)
  [self createNewPoint];


This statement works exactly as you would expect.  The variable r starts
with the number in a field, decrements with each loop, and stops when r
reaches zero.

Anyone else seen this?  What's the cure?

Jonathan
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