Re: help needed with filnames as command line arguments

From: Irrwahn Grausewitz (irrwahn33_at_freenet.de)
Date: 10/18/03 

Date: Sat, 18 Oct 2003 12:50:06 +0200

craigb@smartchat.net.au (Craigb) wrote:

>> <meta rant>
>> I am impressed by the fact that only one out of four replies (so far)
>> contained correct code. Please, test your code before you post it.
>> Thank you.
>> </meta rant>
>>
>> Regards
>
>Tested... *still* works fine for me, however.. appreciate the
>feedback. Tested on Bloodshed gcc and Cygwins gcc also in case you're
>wondering.

Really? Let's see...

Output generated by MingW32 (gcc 3.2, the version that comes with
Bloodshed DevCpp, so probably the same you use):

[...]
gcc.exe "D:\Temp\CraigB_1.c" -o "D:\Temp\CraigB_1.exe" -W -Wall
-std=c99 -O3 -I[...] -L[...]
[...]
D:/Temp/CraigB_1.c:8: warning: passing arg 2 of `printargstuff'
makes pointer from integer without a cast [1]

OK, now let's review your code:
...
003 int printargstuff(int aa, char *bb[]);
...
006 int main(int argc, char *argv[])
007 {
008 printargstuff(argc, *argv[0]);
...

The second argument of printargstuff() has to be a
pointer-to-pointer-to-character. You pass *argc[0] to it,
which is a character. Now please explain how this is
supposed to work without invoking undefined behaviour.

[1] You most probably didn't set your warning level to a
    suitable amount. Warnings usually _are_ errors!

Regards 

-- 
Irrwahn 
(irrwahn33@freenet.de)

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