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Re: What is acceptable for -ffast-math? (Was: associative law in combine)
- To: dewar at gnat dot com, moshier at moshier dot ne dot mediaone dot net,mrs at windriver dot com
- Subject: Re: What is acceptable for -ffast-math? (Was: associative law in combine)
- From: dewar at gnat dot com
- Date: Tue, 31 Jul 2001 11:35:04 -0400 (EDT)
- Cc: gcc at gcc dot gnu dot org
>isn't defined, therefore, we can define it to do anything.
Right, that's what I mean by an upwards compatible extension, i.e. one that
cannot affect any legal defined program. So the answer is indeed for C and
C++ that extensions are allowed freely if they are upwards compatible (this
is not the case in COBOL and Ada), where the standard requires a mode in
which no extensions are made.