* lib/isnan.c (rpl_isnanl): Don't blindly assume 80-bit 'long double'.
* m4/isnanl.m4 (gl_PREREQ_ISNANL): Require gl_LONG_DOUBLE_VS_DOUBLE.
(gl_FUNC_ISNANL_WORKS): Likewise. Don't blindly assume 80-bit
'long double'.
* modules/isnanl-nolibm (Files): Add m4/math_h.m4.
2011-10-09 Bruno Haible <bruno@clisp.org>
+ isnanl[-nolibm]: Fix for platforms where 'long double' == 'double'.
+ * lib/isnan.c (rpl_isnanl): Don't blindly assume 80-bit 'long double'.
+ * m4/isnanl.m4 (gl_PREREQ_ISNANL): Require gl_LONG_DOUBLE_VS_DOUBLE.
+ (gl_FUNC_ISNANL_WORKS): Likewise. Don't blindly assume 80-bit
+ 'long double'.
+ * modules/isnanl-nolibm (Files): Add m4/math_h.m4.
+
isinf: Fix for platforms where 'long double' == 'double'.
* m4/isinf.m4 (gl_ISINFL_WORKS): Require gl_LONG_DOUBLE_VS_DOUBLE.
Don't blindly assume 80-bit 'long double'.
FUNC (DOUBLE x)
{
#ifdef KNOWN_EXPBIT0_LOCATION
-# if defined USE_LONG_DOUBLE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+# if defined USE_LONG_DOUBLE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Special CPU dependent code is needed to treat bit patterns outside the
IEEE 754 specification (such as Pseudo-NaNs, Pseudo-Infinities,
Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals) as NaNs.
the signaling NaNs, handle only the quiet NaNs. */
if (x == x)
{
-# if defined USE_LONG_DOUBLE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+# if defined USE_LONG_DOUBLE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Detect any special bit patterns that pass ==; see comment above. */
memory_double m1;
memory_double m2;
-# isnanl.m4 serial 16
+# isnanl.m4 serial 17
dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_PREREQ_ISNANL],
[
gl_LONG_DOUBLE_EXPONENT_LOCATION
+ AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
])
dnl Test whether isnanl() can be used without libm.
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gl_BIGENDIAN])
+ AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether isnanl works], [gl_cv_func_isnanl_works],
[
result |= 1;
}
-#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
# ifdef WORDS_BIGENDIAN
lib/float+.h
m4/exponentl.m4
m4/isnanl.m4
+m4/math_h.m4
Depends-on:
float