Re: lib/46433: tests/lib/libm/t_exp should not use exp() itself

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

The following reply was made to PR lib/46433; it has been noted by GNATS.

From: Jukka Ruohonen <jruohonen%iki.fi@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: lib/46433: tests/lib/libm/t_exp should not use exp() itself
Date: Wed, 9 May 2012 08:53:41 +0300

 On Wed, May 09, 2012 at 03:05:00AM +0000, isaki%NetBSD.org@localhost wrote:
 > for exp().  For example, this test will pass if a broken exp()
 > that always return zero.
 
 Do you have an opinion on how to fix this (and the related issues)?
    
 In my opinion: if a precondition for a test is not satisfied, the test
 should be skipped. Alternatively, we could append a "broken exp(3) check"
 to these tests and record expected failures on exotic things like VAX or
 m68k without FPU. For the first option, it would be desirable to have
 machine-dependent preprocessor conditionals (cf. "_HAVE_EXP_") for each and
 every math(3) function.
 
 - Jukka.