2000-05-26 Marek Michalkiewicz <marekm@linux.org.pl>

* libm/common/s_expm1.c (expm1): Add curly braces, avoid warnings.
        * libm/common/s_log1p.c (log1p): Likewise.
        * libm/common/s_scalbn.c (scalbn): Likewise.
        * libm/math/e_log.c: Likewise.
        * libm/math/e_asin.c: Likewise.
        * libm/math/ef_asin.c: Likewise.
        * libm/math/e_j0.c (pzero, qzero): Remove redundant test.
        * libm/math/e_j1.c (pone, qone): Likewise.
        * libm/math/ef_j0.c (pzerof, qzerof): Likewise.
        * libm/math/ef_j1.c (ponef, qonef): Likewise.
        * libm/mathfp/e_j0.c (pzero, qzero): Likewise.
        * libm/mathfp/e_j1.c (pone, qone): Likewise.
        * libm/mathfp/ef_j0.c (pzerof, qzerof): Likewise.
        * libm/mathfp/ef_j1.c (ponef, qonef): Likewise.
This commit is contained in:
Jeff Johnston
2000-05-26 22:42:39 +00:00
parent e8844e5d9f
commit 8887021868
15 changed files with 53 additions and 32 deletions

View File

@ -239,9 +239,10 @@ Q5 = -2.01099218183624371326e-07; /* BE8AFDB7 6E09C32D */
e = (x*(e-c)-c);
e -= hxs;
if(k== -1) return 0.5*(x-e)-0.5;
if(k==1)
if(k==1) {
if(x < -0.25) return -2.0*(e-(x+0.5));
else return one+2.0*(x-e);
}
if (k <= -2 || k>56) { /* suffice to return exp(x)-1 */
__uint32_t high;
y = one-(e-x);

View File

@ -201,8 +201,8 @@ static double zero = 0.0;
}
hfsq=0.5*f*f;
if(hu==0) { /* |f| < 2**-20 */
if(f==zero) if(k==0) return zero;
else {c += k*ln2_lo; return k*ln2_hi+c;}
if(f==zero) { if(k==0) return zero;
else {c += k*ln2_lo; return k*ln2_hi+c;}}
R = hfsq*(1.0-0.66666666666666666*f);
if(k==0) return f-R; else
return k*ln2_hi-((R-(k*ln2_lo+c))-f);

View File

@ -91,10 +91,11 @@ tiny = 1.0e-300;
if (k > 0x7fe) return huge*copysign(huge,x); /* overflow */
if (k > 0) /* normal result */
{SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20)); return x;}
if (k <= -54)
if (k <= -54) {
if (n > 50000) /* in case integer overflow in n+k */
return huge*copysign(huge,x); /*overflow*/
else return tiny*copysign(tiny,x); /*underflow*/
}
k += 54; /* subnormal result */
SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20));
return x*twom54;