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| author | mike <mike@FreeBSD.org> | 2003-02-08 20:37:55 +0000 |
|---|---|---|
| committer | mike <mike@FreeBSD.org> | 2003-02-08 20:37:55 +0000 |
| commit | b4e3f2f94a505c800e895764e429ec9ec310d9b4 (patch) | |
| tree | 5fa8c1927e480809720c766a3f48569e33c80af9 /sys/powerpc | |
| parent | 9c57bdd382a4547a47c07bb50cb31b20e614f0c9 (diff) | |
| download | FreeBSD-src-b4e3f2f94a505c800e895764e429ec9ec310d9b4.zip FreeBSD-src-b4e3f2f94a505c800e895764e429ec9ec310d9b4.tar.gz | |
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)
Diffstat (limited to 'sys/powerpc')
| -rw-r--r-- | sys/powerpc/include/_types.h | 2 | ||||
| -rw-r--r-- | sys/powerpc/include/float.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sys/powerpc/include/_types.h b/sys/powerpc/include/_types.h index 7b6e9e3..5374079 100644 --- a/sys/powerpc/include/_types.h +++ b/sys/powerpc/include/_types.h @@ -69,6 +69,8 @@ typedef unsigned long long __uint64_t; */ typedef __uint32_t __clock_t; /* clock()... */ typedef __int32_t __critical_t; +typedef double __double_t; +typedef double __float_t; typedef __int32_t __intfptr_t; typedef __int64_t __intmax_t; typedef __int32_t __intptr_t; diff --git a/sys/powerpc/include/float.h b/sys/powerpc/include/float.h index 95df5f4..9096b1d 100644 --- a/sys/powerpc/include/float.h +++ b/sys/powerpc/include/float.h @@ -40,6 +40,8 @@ #define FLT_RADIX 2 /* b */ #define FLT_ROUNDS 1 /* FP addition rounds to nearest */ +#define FLT_EVAL_METHOD 1 /* operands promoted to double */ +#define DECIMAL_DIG 35 /* max precision in decimal digits */ #define FLT_MANT_DIG 24 /* p */ #define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ |
