Casting pointers
Timothy Murphy
tim at maths.tcd.ie
Sun Sep 30 06:11:44 AEST 1990
I recently came across the following problem,
when temporarily 'borrowing' od from Unix to Mac.
Consider a program like this.
#include <stdio.h>
char *buf = "abc";
main()
{
int *n = (int*) buf;
printf("%d", *n);
}
Should this always work?
On the Mac, with THINK C,
it only works if buf has an even address.
Otherwise it bombs out.
Is that a bug, according to standard C?
--
Timothy Murphy
e-mail: tim at maths.tcd.ie
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