[Numpy-discussion] int16 or int32 for C int ?
Nicolas Pernetty
nicopernetty at yahoo.fr
Mon Jun 27 00:36:48 EDT 2005
On Sun, 26 Jun 2005 21:28:25 -0400, Todd Miller <jmiller at stsci.edu>
wrote :
> >
> > I would like to create a numarray array from a C buffer of 'int' but
> > I don't quite know how to handle different 'int' representation (16
> > or 32 bits).
>
> On the platforms we test on at least, int == Int32. This is even
> true for the 64-bit platforms I've seen.
>
> > For instante should I use :
> >
> > int a[10][20];
> > x = NA_NewArray(a, tInt16, 2, 10, 20);
> >
> > or :
> > int a[10][20];
> > x = NA_NewArray(a, tInt32, 2, 10, 20);
> >
> > Should I use some macro to determine size of int ?
>
> You can do that with: sizeof(int)
>
Ok so If I want to make a really multiplatforms program, I should type :
int a[10][20];
if (sizeof(**a)==4)
x = NA_NewArray(a, tInt32, 2, 10, 20);
else
x = NA_NewArray(a, tInt16, 2, 10, 20);
This is the recommended way ?
Thanks !
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