aboutsummaryrefslogtreecommitdiff
path: root/math/libm-test.c
diff options
context:
space:
mode:
Diffstat (limited to 'math/libm-test.c')
-rw-r--r--math/libm-test.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/math/libm-test.c b/math/libm-test.c
index c2103d4a8b..72c09a7b8e 100644
--- a/math/libm-test.c
+++ b/math/libm-test.c
@@ -134,6 +134,8 @@
#define PRINT 1
#define NO_PRINT 0
+/* Various constants (we must supply them precalculated for accuracy). */
+#define M_PI_6 .52359877559829887308L
static int noErrors;
@@ -1058,7 +1060,7 @@ cos_test (void)
FUNC(cos) (minus_infty),
INVALID_EXCEPTION);
- check_eps ("cos (pi/3) == 0.5", FUNC(cos) (M_PI / 3.0),
+ check_eps ("cos (pi/3) == 0.5", FUNC(cos) (M_PI_6 * 2.0),
0.5, CHOOSE (4e-18L, 1e-15L, 1e-7L));
check_eps ("cos (pi/2) == 0", FUNC(cos) (M_PI_2),
0, CHOOSE (1e-19L, 1e-16L, 1e-7L));
@@ -1711,8 +1713,8 @@ sin_test (void)
FUNC(sin) (minus_infty),
INVALID_EXCEPTION);
- check_eps ("sin (pi/6) == 0.5", FUNC(sin) (M_PI / 6.0), 0.5,
- CHOOSE (4e-18L, 0, 0));
+ check_eps ("sin (pi/6) == 0.5", FUNC(sin) (M_PI_6),
+ 0.5,CHOOSE (4e-18L, 0, 0));
check ("sin (pi/2) == 1", FUNC(sin) (M_PI_2), 1);
}
@@ -1772,11 +1774,11 @@ sincos_test (void)
check_eps ("sincos (pi/2, &sin, &cos) puts 0 in cos", cos_res, 0,
CHOOSE (1e-18L, 1e-16, 1e-7));
- FUNC(sincos) (M_PI / 6.0, &sin_res, &cos_res);
+ FUNC(sincos) (M_PI_6, &sin_res, &cos_res);
check_eps ("sincos (pi/6, &sin, &cos) puts 0.5 in sin", sin_res, 0.5,
CHOOSE (5e-18L, 0, 0));
- FUNC(sincos) (M_PI / 3.0, &sin_res, &cos_res);
+ FUNC(sincos) (M_PI_6*2.0, &sin_res, &cos_res);
check_eps ("sincos (pi/3, &sin, &cos) puts 0.5 in cos", cos_res, 0.5,
CHOOSE (5e-18L, 1e-15, 1e-7));