* 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>

1 files changed, 24 insertions, 1 deletions

diff --git a/stdio-common/tst-sprintf2.c b/stdio-common/tst-sprintf2.c
index 9024b58782..debb68e21f 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;
 }