Module Name: src
Committed By: he
Date: Mon Jul 24 18:14:46 UTC 2017
Modified Files:
src/tests/lib/libm: t_fe_round.c
Log Message:
Add a test checking nearbyint(), using the same table as used by
the existing lrint() test.
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/tests/lib/libm/t_fe_round.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/lib/libm/t_fe_round.c
diff -u src/tests/lib/libm/t_fe_round.c:1.3 src/tests/lib/libm/t_fe_round.c:1.4
--- src/tests/lib/libm/t_fe_round.c:1.3 Mon Jul 24 18:13:36 2017
+++ src/tests/lib/libm/t_fe_round.c Mon Jul 24 18:14:46 2017
@@ -93,10 +93,40 @@ ATF_TC_BODY(fe_round, tc)
}
}
+ATF_TC(fe_nearbyint);
+ATF_TC_HEAD(fe_nearbyint, tc)
+{
+ atf_tc_set_md_var(tc, "descr","Checking IEEE 754 rounding modes using nearbyint");
+}
+
+ATF_TC_BODY(fe_nearbyint, tc)
+{
+ double received;
+
+ for (unsigned int i = 0; i < __arraycount(values); i++) {
+ fesetround(values[i].round_mode);
+
+ received = nearbyint(values[i].input);
+ ATF_CHECK_MSG(
+ (fabs(received - values[i].expected) < EPSILON),
+ "nearbyint rounding wrong, difference too large\n"
+ "input: %f (index %d): got %f, expected %ld\n",
+ values[i].input, i, received, values[i].expected);
+
+ /* Do we get the same rounding mode out? */
+ ATF_CHECK_MSG(
+ (fegetround() == values[i].round_mode),
+ "Didn't get the same rounding mode out!\n"
+ "(index %d) fed in %d rounding mode, got %d out\n",
+ i, values[i].round_mode, fegetround());
+ }
+}
+
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, fe_round);
+ ATF_TP_ADD_TC(tp, fe_nearbyint);
return atf_no_error();
}
@@ -109,15 +139,27 @@ ATF_TC_HEAD(t_nofe_round, tc)
"dummy test case - no fenv.h support");
}
-
ATF_TC_BODY(t_nofe_round, tc)
{
atf_tc_skip("no fenv.h support on this architecture");
}
+ATF_TC_HEAD(t_nofe_nearbyint, tc)
+{
+ atf_tc_set_md_var(tc, "descr",
+ "dummy test case - no fenv.h support");
+}
+
+ATF_TC_BODY(t_nofe_nearbyint, tc)
+{
+ atf_tc_skip("no fenv.h support on this architecture");
+}
+
+
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, t_nofe_round);
+ ATF_TP_ADD_TC(tp, t_nofe_nearbyint);
return atf_no_error();
}
