* sysdeps/ieee754/ldbl-128ibm/printf_fphex.c

	(PRINT_FPHEX_LONG_DOUBLE): Fix printing numbers where lower double
	is non-zero, but smaller than 2 * __DBL_MIN__.
	* stdio-common/tst-sprintf2.c: New test.
	* stdio-common/Makefile (tests): Add tst-sprintf2.

	* math/test-misc.c (main): Don't run last batch of tests with
	IBM long double format.

2 files changed, 60 insertions, 1 deletions

diff --git a/stdio-common/Makefile b/stdio-common/Makefile
index 709a5730fb..735b40104a 100644
--- a/stdio-common/Makefile
+++ b/stdio-common/Makefile
@@ -54,7 +54,7 @@ tests := tstscanf test_rdwr test-popen tstgetln test-fseek \
 	 tst-swprintf tst-fseek tst-fmemopen test-vfprintf tst-gets \
 	 tst-perror tst-sprintf tst-rndseek tst-fdopen tst-fphex bug14 bug15 \
 	 tst-popen tst-unlockedio tst-fmemopen2 tst-put-error tst-fgets \
-	 tst-fwrite bug16 bug17 tst-swscanf
+	 tst-fwrite bug16 bug17 tst-swscanf tst-sprintf2
 
 test-srcs = tst-unbputc tst-printf
 
diff --git a/stdio-common/tst-sprintf2.c b/stdio-common/tst-sprintf2.c
new file mode 100644
index 0000000000..9024b58782
--- /dev/null
+++ b/stdio-common/tst-sprintf2.c
@@ -0,0 +1,59 @@
+#include <float.h>
+#include <math.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+  volatile union { long double l; long long x[2]; } u;
+  char buf[64];
+  int result = 0;
+
+#define TEST(val) \
+  do									   \
+    {									   \
+      u.l = (val);							   \
+      snprintf (buf, sizeof buf, "%LaL", u.l);				   \
+      if (strcmp (buf, #val) != 0)					   \
+	{								   \
+	  printf ("Error on line %d: %s != %s\n", __LINE__, buf, #val);	   \
+	  result = 1;							   \
+	}								   \
+      /* printf ("%s %La %016Lx %016Lx\n", #val, u.l, u.x[0], u.x[1]); */  \
+    }									   \
+  while (0)
+
+#if LDBL_MANT_DIG >= 106
+# if LDBL_MANT_DIG == 106
+  TEST (0x0.ffffffffffffp-1022L);
+  TEST (0x0.ffffffffffff1p-1022L);
+  TEST (0x0.fffffffffffffp-1022L);
+# endif
+  TEST (0x1p-1022L);
+  TEST (0x1.0000000000001p-1022L);
+  TEST (0x1.00000000001e7p-1022L);
+  TEST (0x1.fffffffffffffp-1022L);
+  TEST (0x1p-1021L);
+  TEST (0x1.00000000000008p-1021L);
+  TEST (0x1.0000000000001p-1021L);
+  TEST (0x1.00000000000018p-1021L);
+  TEST (0x1.0000000000000f8p-1017L);
+  TEST (0x1.0000000000001p-1017L);
+  TEST (0x1.000000000000108p-1017L);
+  TEST (0x1.000000000000dcf8p-1013L);
+  TEST (0x1.000000000000ddp-1013L);
+  TEST (0x1.000000000000dd08p-1013L);
+  TEST (0x1.ffffffffffffffffffffffffffp-1L);
+  TEST (0x1.ffffffffffffffffffffffffff8p-1L);
+  TEST (0x1p+0L);
+  TEST (0x1.000000000000000000000000008p+0L);
+  TEST (0x1.00000000000000000000000001p+0L);
+  TEST (0x1.000000000000000000000000018p+0L);
+  TEST (0x1.23456789abcdef123456789abc8p+0L);
+  TEST (0x1.23456789abcde7123456789abc8p+0L);
+  TEST (0x1.23456789abcdef123456789abc8p+64L);
+  TEST (0x1.23456789abcde7123456789abc8p+64L);
+  TEST (0x1.123456789abcdef123456789p-969L);
+#endif
+  return result;
+}