Re: #define issues
Re: #define issues
- Subject: Re: #define issues
- From: Justin Spahr-Summers <email@hidden>
- Date: Sat, 16 Apr 2005 04:10:42 -0500
Perhaps it's your typedef line? Maybe you meant
typedef double[16] matrix;
I'm not even sure if that will work.
On 4/16/05, Aaron Boothello <email@hidden> wrote:
> Well yeah....
> the code looks like that. it's not exactly what i typed in....it does the calculating of the rows and columns just fine. It's actually making the assignment. 'value' is a double and the elements in matrix are doubles. But i keep getting 'incompatible types in assignments'...
>
> (and it seems like the error is in "matrix[whatever] = value" for some reason)
> i cant seem to figure if it's a syntax error or what ? how would you set a value in a #define ?
>
> Cheers,
> Aaron.
>
> On Saturday, April 16, 2005, at 04:25PM, p3consulting <email@hidden> wrote:
>
> >>
> >> #define setvalue(matrix, row, col, value) ( matrix[row+col] = value)
> >> //roughly looks like this
> >>
> >
> >row + col ?
> >
> >0 + 3 = 3 + 0
> >
> >and obviously is not what you want...
> >
> >((row * 4) + col)
> >((0 * 4) + 3) == 3 and ((3 * 4) + 0) == 12
> >
> >+
> >
> >row and col being indices in an array
> >should be int not double...
> >
> >
> >(#define are not a good idea for this kind of application..., just an
> >opinion)
> >
> >
> >Pascal Pochet
> >email@hidden
> >----------------------------------
> >PGP
> >KeyID: 0x208C5DBF
> >Fingerprint: 9BFB 245C 5BFE 7F1D 64B7 C473 ABB3 4E83 208C 5DBF
> >
> >
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