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2017-09-02 Thread Daniel Volchixin
URL: http://mirror.linux-ia64.org/gnu/gcc/ Country/City: Russia / Novosibirsk Contact email / name: dan...@volchixin.co.uk (Daniel Volchixin)

assuming signed overflow does not occur

2017-09-02 Thread Bruce Korb
I know about all these theoretical possibilities of numbers behaving in strange ways when arithmetic optimizations assume that signed overflow won't occur when they actually might. Yep, it creates subtle bugs. The warning is worthwhile. Still and all: 485 tvdiff = abs_tval(sub_tval(tim

Re: assuming signed overflow does not occur

2017-09-02 Thread Bruce Korb
Per request, the inlined functions On Sat, Sep 2, 2017 at 12:59 PM, Bruce Korb wrote: > I know about all these theoretical possibilities of numbers behaving > in strange ways when arithmetic optimizations assume that signed > overflow won't occur when they actually might. Yep, it creates subtle >