From:	Endlisnis <s257m AT unb DOT ca>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: I need help adressing characters in a string
Date:	Tue, 27 Apr 1999 14:32:26 -0300
Organization:	BrunNet
Lines:	33
Message-ID:	<3725F4AA.D0B5BC60@unb.ca>
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

Chris Mears wrote:

> >   char string[100];
> >     for (i = 0; i < sizeof (string) - 1; i++)
>
> In the for loop:  i < sizeof (string)?  Do you mean strlen() or
> something else?  If I recall correctly, sizeof returns the number of
> bytes in a data type.  So if string, in this case, is a constant pointer
> to char, wouldn't it be 2 or 4 bytes, not the dynamic length of the
> string?

    It's not a dynamic length.  And 'string' isn't a simple pointer.  Using
sizeof on an array with a constant size will return the number of bytes in the
array.

char string[100];
char* a = string;

sizeof(a);

This will return 4, because 'a' is a (char *) and not an array.  The real type
of 'string' is (char [100]) it just casts to a (char *) without any warnings.

--
     (\/) Endlisnis (\/)
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