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Strings in C - help
11-05-2012, 07:19 PM, (This post was last modified: 11-05-2012, 07:22 PM by pingotg.)
#21
RE: Strings in C - help
(11-05-2012, 03:53 PM)KiloOne Wrote: Sorry, I am confused, I thought strlen() did not report the null as a character. So how would strlen(tmp) report more than 64 if I only put 64 in it?

Thanks,
Dale
Because you put 64 in and there are already bytes in there, whose values are essentially random (being whatever is left in there).

You do not want those random values to be used so you need to terminate the 64 you put in.

After all, you never set the other bytes to anything (such as nulls)....

You just have:
char tmp[66] = "";
which will set the first byte to a null and leave the rest untouched. tmp is an auto variable so it gets whatever is in the stack memory space. Could be anything at all!

John
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Messages In This Thread
Strings in C - help - by KiloOne - 10-05-2012, 09:24 PM
RE: Strings in C - help - by mf01 - 10-05-2012, 10:00 PM
RE: Strings in C - help - by KiloOne - 10-05-2012, 10:30 PM
RE: Strings in C - help - by KiloOne - 10-05-2012, 10:06 PM
RE: Strings in C - help - by jpmandon - 10-05-2012, 10:18 PM
RE: Strings in C - help - by mf01 - 10-05-2012, 10:43 PM
RE: Strings in C - help - by KiloOne - 10-05-2012, 10:45 PM
RE: Strings in C - help - by jpmandon - 10-05-2012, 11:30 PM
RE: Strings in C - help - by mf01 - 10-05-2012, 11:32 PM
RE: Strings in C - help - by moreno - 11-05-2012, 06:59 AM
RE: Strings in C - help - by mf01 - 11-05-2012, 09:10 AM
RE: Strings in C - help - by KiloOne - 11-05-2012, 01:38 PM
RE: Strings in C - help - by pingotg - 11-05-2012, 02:46 PM
RE: Strings in C - help - by KiloOne - 11-05-2012, 03:08 PM
RE: Strings in C - help - by mf01 - 11-05-2012, 03:08 PM
RE: Strings in C - help - by pingotg - 11-05-2012, 03:27 PM
RE: Strings in C - help - by KiloOne - 11-05-2012, 03:53 PM
RE: Strings in C - help - by pingotg - 11-05-2012, 07:19 PM
RE: Strings in C - help - by mf01 - 11-05-2012, 03:47 PM
RE: Strings in C - help - by mf01 - 11-05-2012, 03:57 PM
RE: Strings in C - help - by KiloOne - 11-05-2012, 04:23 PM
RE: Strings in C - help - by KiloOne - 11-05-2012, 08:33 PM
RE: Strings in C - help - by moreno - 11-05-2012, 08:53 PM
RE: Strings in C - help - by KiloOne - 13-05-2012, 12:34 AM
RE: Strings in C - help - by pingotg - 11-05-2012, 08:58 PM
RE: Strings in C - help - by KiloOne - 11-05-2012, 09:50 PM
RE: Strings in C - help - by pingotg - 12-05-2012, 09:55 AM
RE: Strings in C - help - by moreno - 12-05-2012, 07:45 AM
RE: Strings in C - help - by KiloOne - 12-05-2012, 03:31 PM
RE: Strings in C - help - by pingotg - 12-05-2012, 05:22 PM
RE: Strings in C - help - by KiloOne - 12-05-2012, 05:40 PM
RE: Strings in C - help - by pingotg - 12-05-2012, 06:11 PM
RE: Strings in C - help - by KiloOne - 12-05-2012, 07:27 PM
RE: Strings in C - help - by pingotg - 13-05-2012, 04:48 PM
RE: Strings in C - help - by bjoernp - 15-05-2012, 05:42 PM
RE: Strings in C - help - by KiloOne - 17-05-2012, 12:09 AM

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