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Fix ldbl-128ibm iscanonical for -mlong-double-64. 

This patch fixes the ldbl-128ibm version of the iscanonical macro not
to use __iscanonicall when long double = double (-mlong-double-64).

Tested for powerpc.

	* sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h
	[__NO_LONG_DOUBLE_MATH] (__iscanonicall): Do not declare.
	[__NO_LONG_DOUBLE_MATH] (iscanonical): Define to evaluate to 1.
This commit is contained in:
Joseph Myers 2016-09-30 15:08:08 +00:00
parent d61ef7352b
commit 8278d50ce7
2 changed files with 11 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2016-09-30 Joseph Myers <joseph@codesourcery.com>
* sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h
[__NO_LONG_DOUBLE_MATH] (__iscanonicall): Do not declare.
[__NO_LONG_DOUBLE_MATH] (iscanonical): Define to evaluate to 1.
2016-09-30 Carlos O'Donell <carlos@redhat.com>
[BZ #20292]

6
sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h
View File

@ -20,6 +20,9 @@
# error "Never use <bits/iscanonical.h> directly; include <math.h> instead."
#endif
#ifdef __NO_LONG_DOUBLE_MATH
# define iscanonical(x) ((void) (__typeof (x)) (x), 1)
#else
extern int __iscanonicall (long double __x)
__THROW __attribute__ ((__const__));
@ -29,7 +32,8 @@ extern int __iscanonicall (long double __x)
conversion, before being discarded; in IBM long double, there are
encodings that are not consistently handled as corresponding to any
particular value of the type, and we return 0 for those. */
#define iscanonical(x) \
# define iscanonical(x) \
(sizeof (x) == sizeof (long double) \
? __iscanonicall (x) \
: ((void) (__typeof (x)) (x), 1))
#endif