diff options
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_ceil.c | 9 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c | 9 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_ceilf.c | 7 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_ceill.c | 35 |
4 files changed, 18 insertions, 42 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c index b2154b407d..c291c26f57 100644 --- a/sysdeps/ieee754/dbl-64/s_ceil.c +++ b/sysdeps/ieee754/dbl-64/s_ceil.c @@ -15,15 +15,11 @@ * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to ceil(x). */ #include <math.h> #include <math_private.h> -static const double huge = 1.0e300; - double __ceil (double x) { @@ -33,9 +29,8 @@ __ceil (double x) j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; if (j0 < 20) { - if (j0 < 0) /* raise inexact if x != 0 */ + if (j0 < 0) { - math_force_eval (huge + x); /* return 0*sign(x) if |x|<1 */ if (i0 < 0) { @@ -51,7 +46,6 @@ __ceil (double x) i = (0x000fffff) >> j0; if (((i0 & i) | i1) == 0) return x; /* x is integral */ - math_force_eval (huge + x); /* raise inexact flag */ if (i0 > 0) i0 += (0x00100000) >> j0; i0 &= (~i); i1 = 0; @@ -69,7 +63,6 @@ __ceil (double x) i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); if ((i1 & i) == 0) return x; /* x is integral */ - math_force_eval (huge + x); /* raise inexact flag */ if (i0 > 0) { if (j0 == 20) diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c index c687525d4b..faaaf90208 100644 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c @@ -15,15 +15,11 @@ * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to ceil(x). */ #include <math.h> #include <math_private.h> -static const double huge = 1.0e300; - double __ceil(double x) { @@ -32,14 +28,13 @@ __ceil(double x) EXTRACT_WORDS64(i0,x); j0 = ((i0>>52)&0x7ff)-0x3ff; if(j0<=51) { - if(j0<0) { /* raise inexact if x != 0 */ - math_force_eval(huge+x);/* return 0*sign(x) if |x|<1 */ + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ if(i0<0) {i0=INT64_C(0x8000000000000000);} else if(i0!=0) { i0=INT64_C(0x3ff0000000000000);} } else { i = INT64_C(0x000fffffffffffff)>>j0; if((i0&i)==0) return x; /* x is integral */ - math_force_eval(huge+x); /* raise inexact flag */ if(i0>0) i0 += UINT64_C(0x0010000000000000)>>j0; i0 &= (~i); } diff --git a/sysdeps/ieee754/flt-32/s_ceilf.c b/sysdeps/ieee754/flt-32/s_ceilf.c index 37659ea2ae..bff26c33cb 100644 --- a/sysdeps/ieee754/flt-32/s_ceilf.c +++ b/sysdeps/ieee754/flt-32/s_ceilf.c @@ -17,8 +17,6 @@ #include <math_private.h> -static const float huge = 1.0e30; - float __ceilf(float x) { @@ -28,14 +26,13 @@ __ceilf(float x) GET_FLOAT_WORD(i0,x); j0 = ((i0>>23)&0xff)-0x7f; if(j0<23) { - if(j0<0) { /* raise inexact if x != 0 */ - math_force_eval(huge+x);/* return 0*sign(x) if |x|<1 */ + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ if(i0<0) {i0=0x80000000;} else if(i0!=0) { i0=0x3f800000;} } else { i = (0x007fffff)>>j0; if((i0&i)==0) return x; /* x is integral */ - math_force_eval(huge+x); /* raise inexact flag */ if(i0>0) i0 += (0x00800000)>>j0; i0 &= (~i); } diff --git a/sysdeps/ieee754/ldbl-128/s_ceill.c b/sysdeps/ieee754/ldbl-128/s_ceill.c index 9f6bc4ce15..6b736733c1 100644 --- a/sysdeps/ieee754/ldbl-128/s_ceill.c +++ b/sysdeps/ieee754/ldbl-128/s_ceill.c @@ -22,15 +22,11 @@ static char rcsid[] = "$NetBSD: $"; * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to ceil(x). */ #include <math.h> #include <math_private.h> -static const long double huge = 1.0e4930L; - long double __ceill(long double x) { int64_t i0,i1,j0; @@ -38,18 +34,15 @@ long double __ceill(long double x) GET_LDOUBLE_WORDS64(i0,i1,x); j0 = ((i0>>48)&0x7fff)-0x3fff; if(j0<48) { - if(j0<0) { /* raise inexact if x != 0 */ - if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */ - if(i0<0) {i0=0x8000000000000000ULL;i1=0;} - else if((i0|i1)!=0) { i0=0x3fff000000000000ULL;i1=0;} - } + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ + if(i0<0) {i0=0x8000000000000000ULL;i1=0;} + else if((i0|i1)!=0) { i0=0x3fff000000000000ULL;i1=0;} } else { i = (0x0000ffffffffffffULL)>>j0; if(((i0&i)|i1)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(i0>0) i0 += (0x0001000000000000LL)>>j0; - i0 &= (~i); i1=0; - } + if(i0>0) i0 += (0x0001000000000000LL)>>j0; + i0 &= (~i); i1=0; } } else if (j0>111) { if(j0==0x4000) return x+x; /* inf or NaN */ @@ -57,17 +50,15 @@ long double __ceill(long double x) } else { i = -1ULL>>(j0-48); if((i1&i)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(i0>0) { - if(j0==48) i0+=1; - else { - j = i1+(1LL<<(112-j0)); - if(j<i1) i0 +=1 ; /* got a carry */ - i1=j; - } + if(i0>0) { + if(j0==48) i0+=1; + else { + j = i1+(1LL<<(112-j0)); + if(j<i1) i0 +=1 ; /* got a carry */ + i1=j; } - i1 &= (~i); } + i1 &= (~i); } SET_LDOUBLE_WORDS64(x,i0,i1); return x; |