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authorUlrich Drepper <drepper@redhat.com>2007-06-08 03:08:45 +0000
committerUlrich Drepper <drepper@redhat.com>2007-06-08 03:08:45 +0000
commit7e3706ea254afe6f4a5f5bf4047d0d9967ce1207 (patch)
treedd2f50353b36cf3dc3c52c5c4aa9e6c3b1c80728 /stdio-common/tst-sprintf2.c
parent835abc5c0dfd1ba8aabeb52d46793b13702c708b (diff)
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* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (nextafterl): Remove
unused ily variable. Fix nextafterl on +-__LDBL_MAX__ and +-Inf. Remove unreachable code at the end. 2007-06-01 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/ieee754/ldbl-128ibm/s_fpclassifyl.c: Correct description of ldbl-128ibm in comment. (fpclassifyl): Correct classification of denormals. * sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (nextafterl): Correct return value for MIN denormal. Rewrite using long double math too correctly handle denormals and canonicalize the results. 2007-06-05 Jakub Jelinek <jakub@redhat.com> * sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c (__mpn_construct_long_double): Fix conversion where result ought to be smaller than __LDBL_MIN__, or the low double should be denormal. Fix decision where to negate low double - honor round to even rules. * stdio-common/tst-sprintf2.c: Include string.h. (COMPARE_LDBL): Define. (TEST): Also test whether a string hexadecimal float representation can be parsed back to the number. (main): Add a couple of further tests. 2007-06-04 Jakub Jelinek <jakub@redhat.com>
Diffstat (limited to 'stdio-common/tst-sprintf2.c')
-rw-r--r--stdio-common/tst-sprintf2.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/stdio-common/tst-sprintf2.c b/stdio-common/tst-sprintf2.c
index 9024b58..debb68e 100644
--- a/stdio-common/tst-sprintf2.c
+++ b/stdio-common/tst-sprintf2.c
@@ -1,14 +1,22 @@
#include <float.h>
#include <math.h>
#include <stdio.h>
+#include <string.h>
int
main (void)
{
- volatile union { long double l; long long x[2]; } u;
+ volatile union { long double l; long long x[2]; } u, v;
char buf[64];
int result = 0;
+#if LDBL_MANT_DIG == 106 || LDBL_MANT_DIG == 113
+# define COMPARE_LDBL(u, v) \
+ ((u).l == (v).l && (u).x[0] == (v).x[0] && (u).x[1] == (v).x[1])
+#else
+# define COMPARE_LDBL(u, v) ((u).l == (v).l)
+#endif
+
#define TEST(val) \
do \
{ \
@@ -19,6 +27,12 @@ main (void)
printf ("Error on line %d: %s != %s\n", __LINE__, buf, #val); \
result = 1; \
} \
+ if (sscanf (#val, "%La", &v.l) != 1 || !COMPARE_LDBL (u, v)) \
+ { \
+ printf ("Error sscanf on line %d: %La != %La\n", __LINE__, \
+ u.l, v.l); \
+ result = 1; \
+ } \
/* printf ("%s %La %016Lx %016Lx\n", #val, u.l, u.x[0], u.x[1]); */ \
} \
while (0)
@@ -54,6 +68,15 @@ main (void)
TEST (0x1.23456789abcdef123456789abc8p+64L);
TEST (0x1.23456789abcde7123456789abc8p+64L);
TEST (0x1.123456789abcdef123456789p-969L);
+# if LDBL_MANT_DIG == 106
+ TEST (-0x1.2d71957cc1263bbbeb1d365f1e8p-969L);
+ TEST (0x1.23456789abcdef0123456789abp-970L);
+ TEST (0x1.579bde02468acp-1001L);
+ TEST (0x0.abcdef0123456p-1022L);
+ TEST (0x1.abcdef0123456p-1022L);
+ TEST (0x1.abcdef012345678p-1014L);
+ TEST (0x1.abcdef0123456f8p-1014L);
+# endif
#endif
return result;
}