Re: Annoying warning: statement with no effect
Re: Annoying warning: statement with no effect
- Subject: Re: Annoying warning: statement with no effect
- From: "Clark S. Cox III" <email@hidden>
- Date: Mon, 11 Nov 2002 15:01:09 -0500
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On Monday, Nov 11, 2002, at 14:39 US/Eastern, Jonathan Jackel wrote:
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?
I think you mean:
for (r = [addRowsField intValue]; r != 0; r-- )
[self createNewPoint];
The way you had it before, the "r == 0" statement indeed had no effect.
- --
http://homepage.mac.com/clarkcox3/
email@hidden
Clark S. Cox, III
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (Darwin)
iEYEARECAAYFAj3QDIsACgkQd6STocYT1xUhCACfTzJWyNCX5UhIb2nzJhjurI1Y
SQ8Anioj/NfBJucw/rl7lYwGNZ4xjwfg
=UPD+
-----END PGP SIGNATURE-----
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.