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compiling with fastmath std::isnan(value)^flipped always evaluates to false #815

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crroush opened this issue Sep 29, 2023 · 0 comments
Open

compiling with fastmath std::isnan(value)^flipped always evaluates to false #815

crroush opened this issue Sep 29, 2023 · 0 comments

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@crroush
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crroush commented Sep 29, 2023

Description

warning: comparison with NaN always evaluates to false in fast floating point modes [-Wtautological-constant-compare]
return std::isnan(value) ^ flipped

Steps to reproduce

include doctest.h
enable fastmath
using intel 2022.2.1 oneapi ICPX compiler

Extra information

  • doctest version: 2.4.11
  • Operating System: centos 7
  • Compiler+version: icpx 2022.2.1 (oneapi)
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@crroush