2009-04-09 Ulrich Drepper <drepper@redhat.com>
* stdio-common/vfprintf.c (vfprintf): Slightly more compact code.
+ Simplified code and possible copy problem fixed.
* sysdeps/unix/sysv/linux/preadv.c: Avoid prototype for static
function if it is not defined. Add some necessary casts.
{
/* Extend the array of format specifiers. */
struct printf_spec *old = specs;
+ specs = extend_alloca (specs, nspecs_max, 2 * nspecs_max);
- nspecs_max *= 2;
- specs = alloca (nspecs_max * sizeof (struct printf_spec));
-
- if (specs == &old[nspecs])
- /* Stack grows up, OLD was the last thing allocated;
- extend it. */
- nspecs_max += nspecs_max / 2;
- else
- {
- /* Copy the old array's elements to the new space. */
- memcpy (specs, old, nspecs * sizeof (struct printf_spec));
- if (old == &specs[nspecs])
- /* Stack grows down, OLD was just below the new
- SPECS. We can use that space when the new space
- runs out. */
- nspecs_max += nspecs_max / 2;
- }
+ /* Copy the old array's elements to the new space. */
+ memmove (specs, old, nspecs * sizeof (struct printf_spec));
}
/* Parse the format specifier. */