I think you mean 80 or 128 bits, surely? > Is it possible to modify the gcc compiler so that recompiling existing code and > libraries will produce longer doubles (80 or 128 bytes) without having to re- > declare all the double types. This may be a stupid question but I'm looking > for a quick fix to see if extra precision helps with an optimization problem. This is not a quick fix. It's way more work than changing declarations in any reasonable-size program. -- John Dallman Nullius in verba > -----Original Message----- > From: Gcc-help <gcc-help-bounces@xxxxxxxxxxx> On Behalf Of dave via Gcc- > help > Sent: 07 August 2020 16:00 > To: gcc-help@xxxxxxxxxxx > Subject: making double type default to 80 or 128 bytes > > > Is it possible to modify the gcc compiler so that recompiling existing code and > libraries will produce longer doubles (80 or 128 bytes) > > without having to re declare all the double types. This may be a stupid > question but I'm looking for a quick fix to see if extra > > precision helps with an optimization problem. Thanks. ----------------- Siemens Industry Software Limited is a limited company registered in England and Wales. Registered number: 3476850. Registered office: Faraday House, Sir William Siemens Square, Frimley, Surrey, GU16 8QD.
