[Patch] Fix istream::ignore + minor things

[Paolo Carlini]

Martin Sebor wrote:

> I chose IPF over IA32 because the processor's instruction set
> includes branch prediction hints

P.S. Have you followed this thread:

    http://gcc.gnu.org/ml/gcc/2004-05/msg01243.html

??

In particular what Andi said about P4.

Paolo.