1472e41cb3
gcc/
* builtin-types.def (BT_FN_FLOAT_CONST_STRING): New.
(BT_FN_DOUBLE_CONST_STRING, BT_FN_LONG_DOUBLE_CONST_STRING): New.
* builtins.def (__builtin_nan, __builtin_nanf, __builtin_nanl): New.
(__builtin_nans, __builtin_nansf, __builtin_nansl): New.
* builtins.c (fold_builtin_nan): New.
(fold_builtin): Call it.
* real.c (real_nan): Parse a non-empty string.
(round_for_format): Fix NaN significand truncation.
* real.h (real_nan): Return bool.
* doc/extend.texi: Document new builtins.
libstdc++/
* include/std/std_limits.h (__glibcpp_f32_QNaN_bytes,
__glibcpp_f32_has_QNaN, __glibcpp_f32_SNaN_bytes,
__glibcpp_f32_has_SNaN, __glibcpp_f64_QNaN_bytes,
__glibcpp_f64_has_QNaN, __glibcpp_f64_SNaN_bytes,
__glibcpp_f64_has_SNaN, __glibcpp_f80_QNaN_bytes,
__glibcpp_f80_has_QNaN, __glibcpp_f80_SNaN_bytes,
__glibcpp_f80_has_SNaN, __glibcpp_f96_QNaN_bytes,
__glibcpp_f96_has_QNaN, __glibcpp_f96_SNaN_bytes,
__glibcpp_f96_has_SNaN, __glibcpp_f128_QNaN_bytes,
__glibcpp_f128_has_QNaN, __glibcpp_f128_SNaN_bytes,
__glibcpp_f128_has_SNaN, __glibcpp_float_QNaN_bytes,
__glibcpp_float_has_QNaN, __glibcpp_float_SNaN_bytes,
__glibcpp_float_has_SNaN, __glibcpp_double_QNaN_bytes,
__glibcpp_double_has_QNaN, __glibcpp_double_SNaN_bytes,
__glibcpp_double_has_SNaN, __glibcpp_long_double_QNaN_bytes,
__glibcpp_long_double_has_QNaN, __glibcpp_long_double_SNaN_bytes,
__glibcpp_long_double_has_SNaN): Remove.
(__glibcpp_f128_is_iec559): True if IEEE.
(__glibcpp_float_QNaN, __glibcpp_float_SNaN): Remove.
(__glibcpp_double_QNaN, __glibcpp_double_SNaN): Remove.
(__glibcpp_long_double_QNaN, __glibcpp_long_double_SNaN): Remove.
(std::numeric_limits<float>::has_quiet_NaN): Use __builtin_nanf.
(std::numeric_limits<float>::has_signaling_NaN): Mirror has_quiet_NaN.
(std::numeric_limits<float>::quiet_NaN): Use __builtin_nanf.
(std::numeric_limits<float>::signaling_NaN): Use __builtin_nansf.
(std::numeric_limits<double>): Similarly.
(std::numeric_limits<long double>): Similarly.
* src/limits.cc (__glibcpp_float_QNaN, __glibcpp_float_SNaN): Remove.
(__glibcpp_double_QNaN, __glibcpp_double_SNaN): Remove.
(__glibcpp_long_double_QNaN, __glibcpp_long_double_SNaN): Remove.
* testsuite/18_support/numeric_limits.cc (test_infinity): New.
(test_denorm_min, test_qnan, test_is_iec559): New.
From-SVN: r57221
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.