David Schultz 240dbabfa8 Implement the classification macros isfinite(), isinf(), isnan(), and ... isnormal() the hard way, rather than relying on fpclassify(). This is a lose in the sense that we need a total of 12 functions, but it is necessary for binary compatibility because we have never bumped libm's major version number. In particular, isinf(), isnan(), and isnanf() were BSD libc functions before they were C99 macros, so we can't reimplement them in terms of fpclassify() without adding a dependency on libc.so.5. I have tried to arrange things so that programs that could be compiled in FreeBSD 4.X will generate the same external references when compiled in 5.X. At the same time, the new macros should remain C99-compliant. The isinf() and isnan() functions remain in libc for historical reasons; however, I have moved the functions that implement the macros isfinite() and isnormal() to libm where they belong. Moreover, half a dozen MD versions of isinf() and isnan() have been replaced with MI versions that work equally well. Prodded by: kris		2004-07-09 03:32:40 +00:00
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_ctx_start.S	Use __FBSDID.	2003-01-19 00:17:03 +00:00
_setjmp.S	Use __FBSDID.	2003-01-19 00:17:03 +00:00
divrem.m4
fabs.S	Use __FBSDID.	2003-01-19 00:17:03 +00:00
flt_rounds.c	Use unions to avoid violating C99 strict aliasing rules.	2004-03-16 20:42:02 +00:00
fpgetmask.c	Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm	2004-01-09 16:52:09 +00:00
fpgetround.c	Use unions to avoid violating C99 strict aliasing rules.	2004-03-16 20:42:02 +00:00
fpgetsticky.c	Use unions to avoid violating C99 strict aliasing rules.	2004-03-16 20:42:02 +00:00
fpsetmask.c	Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm	2004-01-09 16:52:09 +00:00
fpsetround.c	Use unions to avoid violating C99 strict aliasing rules.	2004-03-16 20:42:02 +00:00
fpsetsticky.c	Use unions to avoid violating C99 strict aliasing rules.	2004-03-16 20:42:02 +00:00
frexp.c	Fix vendor ID's.	2001-11-07 22:12:52 +00:00
infinity.c	Implement fpclassify():	2003-02-08 20:37:55 +00:00
ldexp.c	Remove 'register' keyword.	2002-03-21 18:49:23 +00:00
makecontext.c	Add required headers and function declarations.	2004-01-06 19:28:07 +00:00
Makefile.inc	Implement the classification macros isfinite(), isinf(), isnan(), and	2004-07-09 03:32:40 +00:00
modf.c	Fix vendor ID's.	2001-11-07 22:12:52 +00:00
rfork_thread.S	Use __FBSDID.	2003-01-19 00:17:03 +00:00
setjmp.S	- Use the magic for ___sigreturn in __sigset.	2003-11-14 03:21:22 +00:00
signalcontext.c	Add signalcontext() which will be needed by libpthread.	2003-08-09 05:37:54 +00:00
sigsetjmp.S	Use __FBSDID.	2003-01-19 00:17:03 +00:00