diff options
Diffstat (limited to 'libm/src/e_j0f.c')
| -rw-r--r-- | libm/src/e_j0f.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libm/src/e_j0f.c b/libm/src/e_j0f.c index b872406..6b566bf 100644 --- a/libm/src/e_j0f.c +++ b/libm/src/e_j0f.c @@ -1,5 +1,6 @@ /* e_j0f.c -- float version of e_j0.c. * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. + * Bugs in __ieee754_j0f and __ieee754_y0f fixed by Scott Turner 01/16/2010 */ /* @@ -63,7 +64,7 @@ __ieee754_j0f(float x) * j0(x) = 1/sqrt(pi) * (P(0,x)*cc - Q(0,x)*ss) / sqrt(x) * y0(x) = 1/sqrt(pi) * (P(0,x)*ss + Q(0,x)*cc) / sqrt(x) */ - if(ix>0x80000000) z = (invsqrtpi*cc)/sqrtf(x); + if(((uint32_t)hx)>0x80000000) z = (invsqrtpi*cc)/sqrtf(x); else { u = pzerof(x); v = qzerof(x); z = invsqrtpi*(u*cc-v*ss)/sqrtf(x); @@ -107,7 +108,7 @@ __ieee754_y0f(float x) int32_t hx,ix; GET_FLOAT_WORD(hx,x); - ix = 0x7fffffff&hx; + ix = hx&0x7fffffff; /* Y0(NaN) is NaN, y0(-inf) is Nan, y0(inf) is 0 */ if(ix>=0x7f800000) return one/(x+x*x); if(ix==0) return -one/zero; @@ -137,7 +138,7 @@ __ieee754_y0f(float x) if ((s*c)<zero) cc = z/ss; else ss = z/cc; } - if(ix>0x80000000) z = (invsqrtpi*ss)/sqrtf(x); + if(((uint32_t)hx)>0x80000000) z = (invsqrtpi*ss)/sqrtf(x); else { u = pzerof(x); v = qzerof(x); z = invsqrtpi*(u*ss+v*cc)/sqrtf(x); |