aboutsummaryrefslogtreecommitdiff
path: root/math
diff options
context:
space:
mode:
Diffstat (limited to 'math')
-rw-r--r--math/atest-exp.c8
-rw-r--r--math/atest-exp2.c7
-rw-r--r--math/atest-sincos.c10
-rw-r--r--math/basic-test.c36
-rw-r--r--math/bug-nextafter.c255
-rw-r--r--math/bug-nexttoward.c255
-rw-r--r--math/libm-test.inc16
-rw-r--r--math/math_private.h6
-rw-r--r--math/s_nextafter.c20
-rw-r--r--math/s_nexttowardf.c21
-rw-r--r--math/test-misc.c74
11 files changed, 658 insertions, 50 deletions
diff --git a/math/atest-exp.c b/math/atest-exp.c
index 2f168c9..158be42 100644
--- a/math/atest-exp.c
+++ b/math/atest-exp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Geoffrey Keating <Geoff.Keating@anu.edu.au>, 1997.
@@ -171,10 +171,8 @@ main (void)
memset (e2, '\0', sizeof (mp1));
for (i = -1; i < 100 && i < FRAC / 4; i++)
- e2[(FRAC - i * 4 - 4) / mpbpl] |= ((mp_limb_t) (strchr (hexdig,
- exp1[i + 1])
- - hexdig)
- << (FRAC - i * 4 - 4) % mpbpl);
+ e2[(FRAC - i * 4 - 4) / mpbpl] |= ((strchr (hexdig, exp1[i + 1]) - hexdig)
+ << (FRAC - i * 4 - 4) % mpbpl);
if (mpn_cmp (ex, e2, SZ) >= 0)
mpn_sub_n (e3, ex, e2, SZ);
diff --git a/math/atest-exp2.c b/math/atest-exp2.c
index 2c028a2..33d942f 100644
--- a/math/atest-exp2.c
+++ b/math/atest-exp2.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Geoffrey Keating <Geoff.Keating@anu.edu.au>, 1997.
@@ -73,9 +73,8 @@ read_mpn_hex(mp_limb_t *x, const char *str)
memset (x, 0, sizeof (mp1));
for (i = -1; i < 100 && i < FRAC / 4; ++i)
- x[(FRAC - i * 4 - 4) / mpbpl] |= ((mp_limb_t) (strchr (hexdig, str[i + 1])
- - hexdig)
- << (FRAC - i * 4 - 4) % mpbpl);
+ x[(FRAC - i * 4 - 4) / mpbpl] |= ((strchr (hexdig, str[i + 1]) - hexdig)
+ << (FRAC - i * 4 - 4) % mpbpl);
}
static mp_limb_t *get_log2(void) __attribute__((const));
diff --git a/math/atest-sincos.c b/math/atest-sincos.c
index bef3521..911aaec 100644
--- a/math/atest-sincos.c
+++ b/math/atest-sincos.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Geoffrey Keating <Geoff.Keating@anu.edu.au>, 1997.
@@ -239,11 +239,9 @@ main (void)
memset (c2, 0, sizeof (mp1));
for (i = 0; i < 100 && i < FRAC / 4; i++)
{
- s2[(FRAC - i * 4 - 4) / mpbpl] |= ((mp_limb_t) (strchr (hexdig, sin1[i])
- - hexdig)
- << (FRAC - i * 4 - 4) % mpbpl);
- c2[(FRAC - i * 4 - 4) / mpbpl] |= ((mp_limb_t) (strchr (hexdig, cos1[i])
- - hexdig)
+ s2[(FRAC - i * 4 - 4) / mpbpl] |= ((strchr (hexdig, sin1[i]) - hexdig)
+ << (FRAC - i * 4 - 4) % mpbpl);
+ c2[(FRAC - i * 4 - 4) / mpbpl] |= ((strchr (hexdig, cos1[i]) - hexdig)
<< (FRAC - i * 4 - 4) % mpbpl);
}
diff --git a/math/basic-test.c b/math/basic-test.c
index e42c014..e48a3ae 100644
--- a/math/basic-test.c
+++ b/math/basic-test.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 1999.
@@ -44,7 +44,7 @@ NAME (void) \
\
zero_var = 0.0; \
one_var = 1.0; \
- NaN_var = zero_var/zero_var; \
+ NaN_var = zero_var / zero_var; \
Inf_var = one_var / zero_var; \
\
(void) &zero_var; \
@@ -103,21 +103,51 @@ NAME (void) \
check (#FLOAT " isinf (-HUGE_VALx) == -1", isinf (x1) == -1); \
}
+#define TEST_TRUNC(NAME, FLOAT, DOUBLE) \
+void \
+NAME (void) \
+{ \
+ volatile DOUBLE Inf_var, NaN_var, zero_var, one_var; \
+ FLOAT x1, x2; \
+ \
+ zero_var = 0.0; \
+ one_var = 1.0; \
+ NaN_var = zero_var / zero_var; \
+ Inf_var = one_var / zero_var; \
+ \
+ (void) &NaN_var; \
+ (void) &Inf_var; \
+ \
+ x1 = (FLOAT) NaN_var; \
+ check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") NaN", isnan (x1) != 0); \
+ x2 = (FLOAT) Inf_var; \
+ check (" "#FLOAT" x = ("#FLOAT") ("#DOUBLE") Inf", isinf (x2) != 0); \
+}
+
TEST_FUNC (float_test, float, nanf, FLT_EPSILON, HUGE_VALF)
TEST_FUNC (double_test, double, nan, DBL_EPSILON, HUGE_VAL)
+TEST_TRUNC (truncdfsf_test, float, double)
#ifndef NO_LONG_DOUBLE
TEST_FUNC (ldouble_test, long double, nanl, LDBL_EPSILON, HUGE_VALL)
+TEST_TRUNC (trunctfsf_test, float, long double)
+TEST_TRUNC (trunctfdf_test, double, long double)
#endif
int
-main (void)
+do_test (void)
{
float_test ();
double_test ();
+ truncdfsf_test();
#ifndef NO_LONG_DOUBLE
ldouble_test ();
+ trunctfsf_test();
+ trunctfdf_test();
#endif
return errors != 0;
}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/math/bug-nextafter.c b/math/bug-nextafter.c
index 2a967c7..1d21841 100644
--- a/math/bug-nextafter.c
+++ b/math/bug-nextafter.c
@@ -4,6 +4,9 @@
#include <stdlib.h>
#include <stdio.h>
+float zero = 0.0;
+float inf = INFINITY;
+
int
main (void)
{
@@ -34,6 +37,81 @@ main (void)
++result;
}
+ i = 0;
+ m = FLT_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ i = nextafterf (m, i);
+ if (i < 0 || i >= FLT_MIN)
+ {
+ puts ("nextafterf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf+ did not underflow");
+ ++result;
+ }
+ i = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ i = nextafterf (-m, -i);
+ if (i > 0 || i <= -FLT_MIN)
+ {
+ puts ("nextafterf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf- did not underflow");
+ ++result;
+ }
+ i = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ m = nextafterf (zero, inf);
+ if (m < 0.0 || m >= FLT_MIN)
+ {
+ puts ("nextafterf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterf (m, i) != 0.0)
+ {
+ puts ("nextafterf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ m = nextafterf (copysignf (zero, -1.0), -inf);
+ if (m > 0.0 || m <= -FLT_MIN)
+ {
+ puts ("nextafterf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterf (m, -i) != 0.0)
+ {
+ puts ("nextafterf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterf- did not underflow");
+ ++result;
+ }
+
double di = INFINITY;
double dm = DBL_MAX;
feclearexcept (FE_ALL_EXCEPT);
@@ -59,5 +137,182 @@ main (void)
++result;
}
+ di = 0;
+ dm = DBL_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ di = nextafter (dm, di);
+ if (di < 0 || di >= DBL_MIN)
+ {
+ puts ("nextafter+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter+ did not underflow");
+ ++result;
+ }
+ di = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ di = nextafter (-dm, -di);
+ if (di > 0 || di <= -DBL_MIN)
+ {
+ puts ("nextafter- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter- did not underflow");
+ ++result;
+ }
+ di = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ dm = nextafter (zero, inf);
+ if (dm < 0.0 || dm >= DBL_MIN)
+ {
+ puts ("nextafter+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafter (dm, di) != 0.0)
+ {
+ puts ("nextafter+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ dm = nextafter (copysign (zero, -1.0), -inf);
+ if (dm > 0.0 || dm <= -DBL_MIN)
+ {
+ puts ("nextafter- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafter (dm, -di) != 0.0)
+ {
+ puts ("nextafter- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafter- did not underflow");
+ ++result;
+ }
+
+#ifndef NO_LONG_DOUBLE
+ long double li = INFINITY;
+ long double lm = LDBL_MAX;
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterl (lm, li) != li)
+ {
+ puts ("nextafterl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nextafterl+ did not overflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterl (-lm, -li) != -li)
+ {
+ puts ("nextafterl failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nextafterl- did not overflow");
+ ++result;
+ }
+
+ li = 0;
+ lm = LDBL_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ li = nextafterl (lm, li);
+ if (li < 0 || li >= LDBL_MIN)
+ {
+ puts ("nextafterl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl+ did not underflow");
+ ++result;
+ }
+ li = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ li = nextafterl (-lm, -li);
+ if (li > 0 || li <= -LDBL_MIN)
+ {
+ puts ("nextafterl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl- did not underflow");
+ ++result;
+ }
+ li = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ lm = nextafterl (zero, inf);
+ if (lm < 0.0 || lm >= LDBL_MIN)
+ {
+ puts ("nextafterl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterl (lm, li) != 0.0)
+ {
+ puts ("nextafterl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ lm = nextafterl (copysign (zero, -1.0), -inf);
+ if (lm > 0.0 || lm <= -LDBL_MIN)
+ {
+ puts ("nextafterl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nextafterl (lm, -li) != 0.0)
+ {
+ puts ("nextafterl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nextafterl- did not underflow");
+ ++result;
+ }
+#endif
+
return result;
}
diff --git a/math/bug-nexttoward.c b/math/bug-nexttoward.c
index e306a12..ff57e5e 100644
--- a/math/bug-nexttoward.c
+++ b/math/bug-nexttoward.c
@@ -4,6 +4,9 @@
#include <stdlib.h>
#include <stdio.h>
+float zero = 0.0;
+float inf = INFINITY;
+
int
main (void)
{
@@ -35,6 +38,81 @@ main (void)
++result;
}
+ fi = 0;
+ m = FLT_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ fi = nexttowardf (m, fi);
+ if (fi < 0 || fi >= FLT_MIN)
+ {
+ puts ("nexttowardf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf+ did not underflow");
+ ++result;
+ }
+ fi = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ fi = nexttowardf (-m, -fi);
+ if (fi > 0 || fi <= -FLT_MIN)
+ {
+ puts ("nexttowardf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf- did not underflow");
+ ++result;
+ }
+ fi = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ m = nexttowardf (zero, inf);
+ if (m < 0.0 || m >= FLT_MIN)
+ {
+ puts ("nexttowardf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardf (m, fi) != 0.0)
+ {
+ puts ("nexttowardf+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ m = nexttowardf (copysignf (zero, -1.0), -inf);
+ if (m > 0.0 || m <= -FLT_MIN)
+ {
+ puts ("nexttowardf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardf (m, -fi) != 0.0)
+ {
+ puts ("nexttowardf- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardf- did not underflow");
+ ++result;
+ }
+
tl = (long double) DBL_MAX + 1.0e305L;
double di = INFINITY;
double dm = DBL_MAX;
@@ -61,5 +139,182 @@ main (void)
++result;
}
+ di = 0;
+ dm = DBL_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ di = nexttoward (dm, di);
+ if (di < 0 || di >= DBL_MIN)
+ {
+ puts ("nexttoward+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward+ did not underflow");
+ ++result;
+ }
+ di = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ di = nexttoward (-dm, -di);
+ if (di > 0 || di <= -DBL_MIN)
+ {
+ puts ("nexttoward- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward- did not underflow");
+ ++result;
+ }
+ di = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ dm = nexttoward (zero, inf);
+ if (dm < 0.0 || dm >= DBL_MIN)
+ {
+ puts ("nexttoward+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttoward (dm, di) != 0.0)
+ {
+ puts ("nexttoward+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ dm = nexttoward (copysign (zero, -1.0), -inf);
+ if (dm > 0.0 || dm <= -DBL_MIN)
+ {
+ puts ("nexttoward- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttoward (dm, -di) != 0.0)
+ {
+ puts ("nexttoward- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttoward- did not underflow");
+ ++result;
+ }
+
+#ifndef NO_LONG_DOUBLE
+ long double li = INFINITY;
+ long double lm = LDBL_MAX;
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardl (lm, li) != li)
+ {
+ puts ("nexttowardl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttowardl+ did not overflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardl (-lm, -li) != -li)
+ {
+ puts ("nexttowardl failed");
+ ++result;
+ }
+ if (fetestexcept (FE_OVERFLOW) == 0)
+ {
+ puts ("nexttowardl- did not overflow");
+ ++result;
+ }
+
+ li = 0;
+ lm = LDBL_MIN;
+ feclearexcept (FE_ALL_EXCEPT);
+ li = nexttowardl (lm, li);
+ if (li < 0 || li >= LDBL_MIN)
+ {
+ puts ("nexttowardl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl+ did not underflow");
+ ++result;
+ }
+ li = 0;
+ feclearexcept (FE_ALL_EXCEPT);
+ li = nexttowardl (-lm, -li);
+ if (li > 0 || li <= -LDBL_MIN)
+ {
+ puts ("nexttowardl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl- did not underflow");
+ ++result;
+ }
+ li = -INFINITY;
+ feclearexcept (FE_ALL_EXCEPT);
+ lm = nexttowardl (zero, inf);
+ if (lm < 0.0 || lm >= LDBL_MIN)
+ {
+ puts ("nexttowardl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardl (lm, li) != 0.0)
+ {
+ puts ("nexttowardl+ failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl+ did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ lm = nexttowardl (copysign (zero, -1.0), -inf);
+ if (lm > 0.0 || lm <= -LDBL_MIN)
+ {
+ puts ("nexttowardl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl- did not underflow");
+ ++result;
+ }
+ feclearexcept (FE_ALL_EXCEPT);
+ if (nexttowardl (lm, -li) != 0.0)
+ {
+ puts ("nexttowardl- failed");
+ ++result;
+ }
+ if (fetestexcept (FE_UNDERFLOW) == 0)
+ {
+ puts ("nexttowardl- did not underflow");
+ ++result;
+ }
+#endif
+
return result;
}
diff --git a/math/libm-test.inc b/math/libm-test.inc
index 23ee6be..81dd364 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -4127,7 +4127,9 @@ log_test (void)
TEST_f_f (log, 1, 0);
TEST_f_f (log, -1, nan_value, INVALID_EXCEPTION);
+ TEST_f_f (log, minus_infty, nan_value, INVALID_EXCEPTION);
TEST_f_f (log, plus_infty, plus_infty);
+ TEST_f_f (log, nan_value, nan_value);
TEST_f_f (log, M_El, 1);
TEST_f_f (log, 1.0 / M_El, -1);
@@ -4157,6 +4159,7 @@ log10_test (void)
/* log10 (x) == NaN plus invalid exception if x < 0. */
TEST_f_f (log10, -1, nan_value, INVALID_EXCEPTION);
+ TEST_f_f (log10, minus_infty, nan_value, INVALID_EXCEPTION);
TEST_f_f (log10, plus_infty, plus_infty);
TEST_f_f (log10, nan_value, nan_value);
@@ -4188,6 +4191,7 @@ log1p_test (void)
TEST_f_f (log1p, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION);
TEST_f_f (log1p, -2, nan_value, INVALID_EXCEPTION);
+ TEST_f_f (log1p, minus_infty, nan_value, INVALID_EXCEPTION);
TEST_f_f (log1p, plus_infty, plus_infty);
TEST_f_f (log1p, nan_value, nan_value);
@@ -4218,6 +4222,7 @@ log2_test (void)
TEST_f_f (log2, 1, 0);
TEST_f_f (log2, -1, nan_value, INVALID_EXCEPTION);
+ TEST_f_f (log2, minus_infty, nan_value, INVALID_EXCEPTION);
TEST_f_f (log2, plus_infty, plus_infty);
TEST_f_f (log2, nan_value, nan_value);
@@ -4614,6 +4619,17 @@ pow_test (void)
/* pow (x, NaN) == NaN. */
TEST_ff_f (pow, 3.0, nan_value, nan_value);
+ TEST_ff_f (pow, minus_zero, nan_value, nan_value);
+ TEST_ff_f (pow, plus_infty, nan_value, nan_value);
+ TEST_ff_f (pow, -3.0, nan_value, nan_value);
+ TEST_ff_f (pow, minus_infty, nan_value, nan_value);
+
+ TEST_ff_f (pow, nan_value, 3.0, nan_value);
+ TEST_ff_f (pow, nan_value, -3.0, nan_value);
+ TEST_ff_f (pow, nan_value, plus_infty, nan_value);
+ TEST_ff_f (pow, nan_value, minus_infty, nan_value);
+ TEST_ff_f (pow, nan_value, 2.5, nan_value);
+ TEST_ff_f (pow, nan_value, -2.5, nan_value);
TEST_ff_f (pow, 1, plus_infty, 1);
TEST_ff_f (pow, -1, plus_infty, 1);
diff --git a/math/math_private.h b/math/math_private.h
index 572e546..129646f 100644
--- a/math/math_private.h
+++ b/math/math_private.h
@@ -332,4 +332,10 @@ extern double __slowexp (double __x);
extern double __slowpow (double __x, double __y, double __z);
extern void __docos (double __x, double __dx, double __v[]);
+#ifndef math_opt_barrier
+#define math_opt_barrier(x) \
+({ __typeof (x) __x = x; __asm ("" : "+m" (__x)); __x; })
+#define math_force_eval(x) __asm __volatile ("" : : "m" (x))
+#endif
+
#endif /* _MATH_PRIVATE_H_ */
diff --git a/math/s_nextafter.c b/math/s_nextafter.c
index 9c678b7..d2af52d 100644
--- a/math/s_nextafter.c
+++ b/math/s_nextafter.c
@@ -26,7 +26,7 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
#define nexttoward __internal_nexttoward
#include <math.h>
-#include "math_private.h"
+#include <math_private.h>
#include <float.h>
#ifdef __STDC__
@@ -49,9 +49,12 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
return x+y;
if(x==y) return y; /* x=y, return y */
if((ix|lx)==0) { /* x == 0 */
+ double u;
INSERT_WORDS(x,hy&0x80000000,1); /* return +-minsubnormal */
- y = x*x;
- if(y==x) return y; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u*u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(hx>=0) { /* x > 0 */
if(hx>hy||((hx==hy)&&(lx>ly))) { /* x > y, x -= ulp */
@@ -74,15 +77,12 @@ static char rcsid[] = "$NetBSD: s_nextafter.c,v 1.8 1995/05/10 20:47:58 jtc Exp
if(hy>=0x7ff00000) {
x = x+x; /* overflow */
if (FLT_EVAL_METHOD != 0 && FLT_EVAL_METHOD != 1)
- asm ("" : "=m"(x) : "m"(x));
+ asm ("" : "+m"(x));
return x; /* overflow */
}
- if(hy<0x00100000) { /* underflow */
- y = x*x;
- if(y!=x) { /* raise underflow flag */
- INSERT_WORDS(y,hx,lx);
- return y;
- }
+ if(hy<0x00100000) {
+ double u = x*x; /* underflow */
+ math_force_eval (u); /* raise underflow flag */
}
INSERT_WORDS(x,hx,lx);
return x;
diff --git a/math/s_nexttowardf.c b/math/s_nexttowardf.c
index 1a10266..0494d1a 100644
--- a/math/s_nexttowardf.c
+++ b/math/s_nexttowardf.c
@@ -21,7 +21,7 @@
*/
#include <math.h>
-#include "math_private.h"
+#include <math_private.h>
#include <float.h>
#ifdef __STDC__
@@ -45,10 +45,12 @@
return x+y;
if((long double) x==y) return y; /* x=y, return y */
if(ix==0) { /* x == 0 */
- float x2;
+ float u;
SET_FLOAT_WORD(x,(u_int32_t)(hy&0x80000000)|1);/* return +-minsub*/
- x2 = x*x;
- if(x2==x) return x2; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u * u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(hx>=0) { /* x > 0 */
if(hy<0||(ix>>23)>(iy>>20)-0x380
@@ -70,15 +72,12 @@
x = x+x; /* overflow */
if (FLT_EVAL_METHOD != 0)
/* Force conversion to float. */
- asm ("" : "=m"(x) : "m"(x));
+ asm ("" : "+m"(x));
return x;
}
- if(hy<0x00800000) { /* underflow */
- float x2 = x*x;
- if(x2!=x) { /* raise underflow flag */
- SET_FLOAT_WORD(x2,hx);
- return x2;
- }
+ if(hy<0x00800000) {
+ float u = x*x; /* underflow */
+ math_force_eval (u); /* raise underflow flag */
}
SET_FLOAT_WORD(x,hx);
return x;
diff --git a/math/test-misc.c b/math/test-misc.c
index d2393cc..862e11f 100644
--- a/math/test-misc.c
+++ b/math/test-misc.c
@@ -1,5 +1,5 @@
/* Miscellaneous tests which don't fit anywhere else.
- Copyright (C) 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2004, 2005, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -44,7 +44,6 @@ main (void)
}
}
-# if __GNUC__ >= 3 || __GNUC_MINOR__ >= 96
{
long double x;
long double m;
@@ -52,17 +51,17 @@ main (void)
int e;
int i;
-# if LDBL_MANT_DIG == 64
+# if LDBL_MANT_DIG == 64
m = 0xf.fffffffffffffffp-4L;
-# elif LDBL_MANT_DIG == 106
+# elif LDBL_MANT_DIG == 106
/* This has to match the mantissa of LDBL_MAX which actually does have a
missing bit in the middle. */
m = 0x1.fffffffffffff7ffffffffffff8p-1L;
-# elif LDBL_MANT_DIG == 113
+# elif LDBL_MANT_DIG == 113
m = 0x1.ffffffffffffffffffffffffffffp-1L;
-# else
-# error "Please adjust"
-# endif
+# else
+# error "Please adjust"
+# endif
for (i = LDBL_MAX_EXP, x = LDBL_MAX; i >= LDBL_MIN_EXP; --i, x /= 2.0L)
{
@@ -106,9 +105,8 @@ main (void)
}
}
-# endif
-#if 0
+# if 0
{
int e;
long double r = frexpl (LDBL_MIN * LDBL_EPSILON, &e);
@@ -126,7 +124,7 @@ main (void)
result = 1;
}
}
-#endif
+# endif
#endif
{
@@ -1183,5 +1181,59 @@ main (void)
}
#endif
+ volatile float f1 = FLT_MAX;
+ volatile float f2 = FLT_MAX / 2;
+ (void) &f1;
+ (void) &f2;
+ feclearexcept (FE_ALL_EXCEPT);
+ f2 += f1;
+ int fe = fetestexcept (FE_ALL_EXCEPT);
+ if (fe != (FE_OVERFLOW | FE_INEXACT))
+ {
+ printf ("float overflow test failed: %x\n", fe);
+ result = 1;
+ }
+
+ volatile double d1 = DBL_MAX;
+ volatile double d2 = DBL_MAX / 2;
+ (void) &d1;
+ (void) &d2;
+ feclearexcept (FE_ALL_EXCEPT);
+ d2 += d1;
+ fe = fetestexcept (FE_ALL_EXCEPT);
+ if (fe != (FE_OVERFLOW | FE_INEXACT))
+ {
+ printf ("double overflow test failed: %x\n", fe);
+ result = 1;
+ }
+
+#ifndef NO_LONG_DOUBLE
+ volatile long double ld1 = LDBL_MAX;
+ volatile long double ld2 = LDBL_MAX / 2;
+ (void) &ld1;
+ (void) &ld2;
+ feclearexcept (FE_ALL_EXCEPT);
+ ld2 += ld1;
+ fe = fetestexcept (FE_ALL_EXCEPT);
+ if (fe != (FE_OVERFLOW | FE_INEXACT))
+ {
+ printf ("long double overflow test failed: %x\n", fe);
+ result = 1;
+ }
+#endif
+
+#if !defined NO_LONG_DOUBLE && LDBL_MANT_DIG == 113
+ volatile long double ld3 = 0x1.0000000000010000000100000001p+1;
+ volatile long double ld4 = 0x1.0000000000000000000000000001p+1;
+ (void) &ld3;
+ (void) &ld4;
+ ld3 -= ld4;
+ if (ld3 != 0x1.0p-47)
+ {
+ printf ("long double subtraction test failed %.28La\n", ld3);
+ result = 1;
+ }
+#endif
+
return result;
}
generated by cgit v1.1 at 2024-11-17 12:14:14 +0000