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From: Ngie Cooper <ngie@FreeBSD.org>
Date: Mon, 29 May 2017 18:49:28 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r319158 - head/lib/msun/tests
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Author: ngie
Date: Mon May 29 18:49:28 2017
New Revision: 319158
URL: https://svnweb.freebsd.org/changeset/base/319158

Log:
  logarithm_test: assert that feclearexcept succeeds
  
  This helps ensure that test preconditons are fulfilled.
  
  MFC after:	3 days
  Reported by:	Coverity
  CID:		1346572
  Sponsored by:	Dell EMC Isilon

Modified:
  head/lib/msun/tests/logarithm_test.c

Modified: head/lib/msun/tests/logarithm_test.c
==============================================================================
--- head/lib/msun/tests/logarithm_test.c	Mon May 29 18:45:10 2017	(r319157)
+++ head/lib/msun/tests/logarithm_test.c	Mon May 29 18:49:28 2017	(r319158)
@@ -137,7 +137,7 @@ run_log2_tests(void)
 	 * We should insist that log2() return exactly the correct
 	 * result and not raise an inexact exception for powers of 2.
 	 */
-	feclearexcept(FE_ALL_EXCEPT);
+	assert(feclearexcept(FE_ALL_EXCEPT) == 0);
 	for (i = FLT_MIN_EXP - FLT_MANT_DIG; i < FLT_MAX_EXP; i++) {
 		assert(log2f(ldexpf(1.0, i)) == i);
 		assert(fetestexcept(ALL_STD_EXCEPT) == 0);