On Sat, 23 Jun 2012, Marc Glisse wrote:

> Actually, what would you think of s/flag_trapping_math/flag_signaling_nans/
> in invert_tree_comparison? Are there other possible ways a<b can trap than
> having a sNaN for a or b?

Ordered comparisons raise exceptions for both quiet and signaling NaNs.  
It's generally operations with floating-point results that raise 
exceptions only for signaling NaN operands.

-- 
Joseph S. Myers
jos...@codesourcery.com

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