Could use some help with variable length argument lists
Marc Ramirez
marc.ramirez at bluecirclesoft.com
Tue Feb 10 15:06:15 PST 2004
On Tue, Feb 10, 2004 at 03:37:00PM -0500, Jeremy Faulkner wrote:
>
>
> va_start says that the last required variable is "message".
>
> You can't use ap because it's not in the list of variables when you
> called the function.
ap doesn't represent a parameter, it represents the list. C/C++ have
no way of knowing how many parameters were passed in. The information
in "message" tells the function how many parameters are in the list.
> _log(1, "Log test");
> ^ There's nothing there to be "ap"
>
> So it "Segmentation fault (core dumped)"'s
>
> _log(1, "Log test", NULL);
If that were true, then
printf("Hello, world!");
could never work.
Marc.
> --
> Jeremy Faulkner http://www.gldis.ca
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--
Marc Ramirez
Blue Circle Software Corporation
513-688-1070 (main)
513-382-1270 (direct)
http://www.bluecirclesoft.com
http://www.mrami.com (personal)
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