[Cfp-interest 1305] Re: fesetexcept() and optional inexact

[Fred J. Tydeman]

On Sat, 4 May 2019 19:54:59 -0700 (PDT) David Hough CFP wrote:
>
>It should not be implementation-defined, as far as 754 is concerned.
>Under default exception handling, the inexact flag is raised whenever
>the underflow or overflow flag is raised.   Under alternate exception handling,
>it might not be, but that's a function of the alternative exception handling
>chosen by the programmer, not an implementation choice.

C2x has two similar functions:

  feraiseexcept
  fesetexcept

They both set flags.
feraiseexcept with also trap (if traps are enabled)
fesetexcept will not trap (even if traps are enabled).



---
Fred J. Tydeman        Tydeman Consulting
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