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| author | Mike Barcroft <mike@FreeBSD.org> | 2003-02-08 20:37:55 +0000 |
|---|---|---|
| committer | Mike Barcroft <mike@FreeBSD.org> | 2003-02-08 20:37:55 +0000 |
| commit | 8cf5ed5125ca8f57fa6f27892f3fbda25a52d354 (patch) | |
| tree | 5fa8c1927e480809720c766a3f48569e33c80af9 /sys/sparc64 | |
| parent | 856417ebfd05b1330ae28035e7582e0b543b7619 (diff) | |
| download | src-8cf5ed5125ca8f57fa6f27892f3fbda25a52d354.tar.gz src-8cf5ed5125ca8f57fa6f27892f3fbda25a52d354.zip | |
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)
Notes
Notes:
svn path=/head/; revision=110566
Diffstat (limited to 'sys/sparc64')
| -rw-r--r-- | sys/sparc64/include/_types.h | 2 | ||||
| -rw-r--r-- | sys/sparc64/include/float.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sys/sparc64/include/_types.h b/sys/sparc64/include/_types.h index d30c9484d8d0..31185964ef74 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; diff --git a/sys/sparc64/include/float.h b/sys/sparc64/include/float.h index 96eab375c2f5..e9fb8d003821 100644 --- a/sys/sparc64/include/float.h +++ b/sys/sparc64/include/float.h @@ -55,6 +55,8 @@ __END_DECLS #define FLT_RADIX 2 /* b */ #define FLT_ROUNDS __flt_rounds() +#define FLT_EVAL_METHOD 0 /* no promotion */ +#define DECIMAL_DIG 35 /* max precision in decimal digits */ #define FLT_MANT_DIG 24 /* p */ #define FLT_EPSILON 1.19209290E-7F /* b**(1-p) */ |