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-rw-r--r--math/test-misc.c488
1 files changed, 488 insertions, 0 deletions
diff --git a/math/test-misc.c b/math/test-misc.c
index 1c9c2a514c..1ba2943a5a 100644
--- a/math/test-misc.c
+++ b/math/test-misc.c
@@ -223,7 +223,146 @@ main (void)
printf ("fpclassify (-FLT_MAX-epsilon) failed: %d\n", fpclassify (f));
result = 1;
}
+
+ v1.f = f = 0.0625;
+ f = nextafterf (f, 0.0);
+ v2.f = f = nextafterf (f, 1.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("0.0625f down: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625f down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625f down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.f = f = 0.0625;
+ f = nextafterf (f, 1.0);
+ v2.f = f = nextafterf (f, 0.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("0.0625f up: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625f up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625f up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.f = f = -0.0625;
+ f = nextafterf (f, 0.0);
+ v2.f = f = nextafterf (f, -1.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("-0.0625f up: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625f up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625f up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.f = f = -0.0625;
+ f = nextafterf (f, -1.0);
+ v2.f = f = nextafterf (f, 0.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("-0.0625f down: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625f down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625f down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.f = f = 0.0f;
+ f = nextafterf (f, 1.0);
+ v2.f = nextafterf (f, -1.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("0.0f up: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0f up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (0 != v2.ieee.negative)
+ {
+ printf ("0.0f up: negative differs: 0 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.f = f = 0.0f;
+ f = nextafterf (f, -1.0);
+ v2.f = nextafterf (f, 1.0);
+
+ if (v1.ieee.mantissa != v2.ieee.mantissa)
+ {
+ printf ("0.0f down: mantissa differs: %8x vs %8x\n",
+ v1.ieee.mantissa, v2.ieee.mantissa);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0f down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (1 != v2.ieee.negative)
+ {
+ printf ("0.0f down: negative differs: 1 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
}
+
{
union ieee754_double v1;
union ieee754_double v2;
@@ -344,7 +483,182 @@ main (void)
printf ("fpclassify (-DBL_MAX-epsilon) failed: %d\n", fpclassify (d));
result = 1;
}
+
+ v1.d = d = 0.0625;
+ d = nextafter (d, 0.0);
+ v2.d = d = nextafter (d, 1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0625 down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0625 down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625 down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625 down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = d = 0.0625;
+ d = nextafter (d, 1.0);
+ v2.d = d = nextafter (d, 0.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0625 up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0625 up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625 up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625 up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = d = -0.0625;
+ d = nextafter (d, 0.0);
+ v2.d = d = nextafter (d, -1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("-0.0625 up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("-0.0625 up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625 up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625 up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = d = -0.0625;
+ d = nextafter (d, -1.0);
+ v2.d = d = nextafter (d, 0.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("-0.0625 down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("-0.0625 down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625 down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625 down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = d = 0.0;
+ d = nextafter (d, 1.0);
+ v2.d = nextafter (d, -1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0 up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0 up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0 up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (0 != v2.ieee.negative)
+ {
+ printf ("0.0 up: negative differs: 0 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = d = 0.0;
+ d = nextafter (d, -1.0);
+ v2.d = nextafter (d, 1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0 down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0 down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0 down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (1 != v2.ieee.negative)
+ {
+ printf ("0.0 down: negative differs: 1 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
}
+
#ifndef NO_LONG_DOUBLE
{
union ieee854_long_double v1;
@@ -469,6 +783,180 @@ main (void)
fpclassify (ld));
result = 1;
}
+
+ v1.d = ld = 0.0625;
+ ld = nextafterl (ld, 0.0);
+ v2.d = ld = nextafterl (ld, 1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0625L down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0625L down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625L down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625L down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = ld = 0.0625;
+ ld = nextafterl (ld, 1.0);
+ v2.d = ld = nextafterl (ld, 0.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0625L up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0625L up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0625L up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("0.0625L up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = ld = -0.0625;
+ ld = nextafterl (ld, 0.0);
+ v2.d = ld = nextafterl (ld, -1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("-0.0625L up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("-0.0625L up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625L up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625L up: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = ld = -0.0625;
+ ld = nextafterl (ld, -1.0);
+ v2.d = ld = nextafterl (ld, 0.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("-0.0625L down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("-0.0625L down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("-0.0625L down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (v1.ieee.negative != v2.ieee.negative)
+ {
+ printf ("-0.0625L down: negative differs: %d vs %d\n",
+ v1.ieee.negative, v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = ld = 0.0;
+ ld = nextafterl (ld, 1.0);
+ v2.d = nextafterl (ld, -1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0L up: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0L up: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0L up: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (0 != v2.ieee.negative)
+ {
+ printf ("0.0L up: negative differs: 0 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
+
+ v1.d = ld = 0.0;
+ ld = nextafterl (ld, -1.0);
+ v2.d = nextafterl (ld, 1.0);
+
+ if (v1.ieee.mantissa0 != v2.ieee.mantissa0)
+ {
+ printf ("0.0L down: mantissa0 differs: %8x vs %8x\n",
+ v1.ieee.mantissa0, v2.ieee.mantissa0);
+ result = 1;
+ }
+ if (v1.ieee.mantissa1 != v2.ieee.mantissa1)
+ {
+ printf ("0.0L down: mantissa1 differs: %8x vs %8x\n",
+ v1.ieee.mantissa1, v2.ieee.mantissa1);
+ result = 1;
+ }
+ if (v1.ieee.exponent != v2.ieee.exponent)
+ {
+ printf ("0.0L down: exponent differs: %4x vs %4x\n",
+ v1.ieee.exponent, v2.ieee.exponent);
+ result = 1;
+ }
+ if (1 != v2.ieee.negative)
+ {
+ printf ("0.0L down: negative differs: 1 vs %d\n",
+ v2.ieee.negative);
+ result = 1;
+ }
}
#endif
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