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-rw-r--r--ChangeLog13
-rw-r--r--stdlib/strtod.c12
-rw-r--r--sysdeps/generic/strtold.c (renamed from stdlib/strtold.c)0
-rw-r--r--sysdeps/m68k/strtold.c2
4 files changed, 24 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index 5dbcd4d226..0548fb36f2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+1999-03-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * stdlib/strtod.c (round_and_return): Fix rounding of denormals.
+ (DENORM_EXP): New define. Use it as the exponent for a denormal.
+ * stdlib/strtold.c: Moved to ...
+ * sysdeps/generic/strtold.c: ... here.
+ * sysdeps/m68k/strtold.c: New file.
+
+1999-03-09 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
+
+ * stdio-common/printf_fphex.c (__printf_fphex): Print no decimal
+ point if the precision is zero, even if the mantissa is non-zero.
+
1999-03-09 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/ioctl.c (__ioctl): Move the marshalling of the
diff --git a/stdlib/strtod.c b/stdlib/strtod.c
index 5b15859066..0de96a571b 100644
--- a/stdlib/strtod.c
+++ b/stdlib/strtod.c
@@ -226,7 +226,7 @@ round_and_return (mp_limb_t *retval, int exponent, int negative,
int i;
round_limb = retval[RETURN_LIMB_SIZE - 1];
- round_bit = BITS_PER_MP_LIMB - 1;
+ round_bit = (MANT_DIG - 1) % BITS_PER_MP_LIMB;
for (i = 0; i < RETURN_LIMB_SIZE; ++i)
more_bits |= retval[i] != 0;
MPN_ZERO (retval, RETURN_LIMB_SIZE);
@@ -254,7 +254,13 @@ round_and_return (mp_limb_t *retval, int exponent, int negative,
round_bit = shift - 1;
(void) __mpn_rshift (retval, retval, RETURN_LIMB_SIZE, shift);
}
- exponent = MIN_EXP - 2;
+ /* This is a hook for the m68k long double format, where the
+ exponent bias is the same for normalized and denormalized
+ numbers. */
+#ifndef DENORM_EXP
+# define DENORM_EXP (MIN_EXP - 2)
+#endif
+ exponent = DENORM_EXP;
}
if ((round_limb & (((mp_limb_t) 1) << round_bit)) != 0
@@ -273,7 +279,7 @@ round_and_return (mp_limb_t *retval, int exponent, int negative,
retval[RETURN_LIMB_SIZE - 1]
|= ((mp_limb_t) 1) << ((MANT_DIG - 1) % BITS_PER_MP_LIMB);
}
- else if (exponent == MIN_EXP - 2
+ else if (exponent == DENORM_EXP
&& (retval[RETURN_LIMB_SIZE - 1]
& (((mp_limb_t) 1) << ((MANT_DIG - 1) % BITS_PER_MP_LIMB)))
!= 0)
diff --git a/stdlib/strtold.c b/sysdeps/generic/strtold.c
index f1bb2f1c0d..f1bb2f1c0d 100644
--- a/stdlib/strtold.c
+++ b/sysdeps/generic/strtold.c
diff --git a/sysdeps/m68k/strtold.c b/sysdeps/m68k/strtold.c
new file mode 100644
index 0000000000..dd7fbce195
--- /dev/null
+++ b/sysdeps/m68k/strtold.c
@@ -0,0 +1,2 @@
+#define DENORM_EXP (MIN_EXP - 1)
+#include <sysdeps/generic/strtold.c>