Implement fpclassify():

o Add a MD header private to libc called _fpmath.h; this header
  contains bitfield layouts of MD floating-point types.
o Add a MI header private to libc called fpmath.h; this header
  contains bitfield layouts of MI floating-point types.
o Add private libc variables to lib/libc/$arch/gen/infinity.c for
  storing NaN values.
o Add __double_t and __float_t to <machine/_types.h>, and provide
  double_t and float_t typedefs in <math.h>.
o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF,
  HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to
  <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via
  <machine/float.h>.
o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based
  on the size of its argument.  __fpclassifyl() is never called on
  alpha because (sizeof(long double) == sizeof(double)), which is good
  since __fpclassifyl() can't deal with such a small `long double'.

This was developed by David Schultz and myself with input from bde and
fenner.

PR:		23103
Submitted by:	David Schultz <dschultz@uclink.Berkeley.EDU>
		(significant portions)
Reviewed by:	bde, fenner (earlier versions)

1 files changed, 2 insertions, 0 deletions

diff --git a/sys/sparc64/include/_types.h b/sys/sparc64/include/_types.h
index d30c948..3118596 100644
--- a/sys/sparc64/include/_types.h
+++ b/sys/sparc64/include/_types.h
@@ -56,6 +56,8 @@ typedef	unsigned long		__uint64_t;
  */
 typedef	__int32_t	__clock_t;		/* clock()... */
 typedef	__int64_t	__critical_t;
+typedef	double		__double_t;
+typedef	float		__float_t;
 typedef	__int64_t	__intfptr_t;
 typedef	__int64_t	__intmax_t;
 typedef	__int64_t	__intptr_t;