David Schultz b2d5d0b376 Define the following macros in terms of [gi]cc builtins when the ... builtins are available: HUGE_VAL, HUGE_VALF, HUGE_VALL, INFINITY, and NAN. These macros now expand to floating-point constant expressions rather than external references, as required by C99. Other compilers will retain the historical behavior. Note that it is not possible say, e.g. #define HUGE_VAL 1.0e9999 because the above may result in diagnostics at translation time and spurious exceptions at runtime. Hence the need for compiler support for these features. Also use builtins to implement the macros isgreater(), isgreaterequal(), isless(), islessequal(), islessgreater(), and isunordered() when such builtins are available. Although the old macros are correct, the builtin versions are much faster, and they avoid double-expansion problems.		2004-07-09 03:31:09 +00:00
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alpha	Add an fenv.h implementation for the alpha port. All of the standard	2004-06-06 09:58:55 +00:00
amd64	Insert a missing '~' in feholdexcept(), so that it correctly clears	2004-06-11 02:35:19 +00:00
arm	Add an fenv.h implementation for the arm port.	2004-06-06 10:03:59 +00:00
bsdsrc	Remove some kludges designed to ensure that the compiler didn't round	2004-05-17 01:04:37 +00:00
i387	Completely remove s_ilogb.S as the assembler implementation gives very little	2004-06-20 10:42:23 +00:00
ia64	Shift the FPSR contents by the correct amount so feupdateenv() raises	2004-06-11 02:35:30 +00:00
man	Add C99's nearbyint{,f}() functions as wrappers around rint().	2004-07-06 04:46:08 +00:00
powerpc	Add an fenv.h implementation for the powerpc port.	2004-06-06 10:05:10 +00:00
sparc64	Add an fenv.h implementation for the sparc64 port.	2004-06-06 10:05:57 +00:00
src	Define the following macros in terms of [gi]cc builtins when the	2004-07-09 03:31:09 +00:00
Makefile	Add C99's nearbyint{,f}() functions as wrappers around rint().	2004-07-06 04:46:08 +00:00