X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fmath%2Fj1f.c;h=3434c53dcc2d8c535fbbfd38cc0b8308acdec571;hb=2fab90a71acd3698954c08b9062db67188443dd7;hp=5a760f712181b06c6ea41b96c40b62afceccfb4e;hpb=5bb6b24952e3f95ede42b60ac64a33ac34b8e272;p=musl diff --git a/src/math/j1f.c b/src/math/j1f.c index 5a760f71..3434c53d 100644 --- a/src/math/j1f.c +++ b/src/math/j1f.c @@ -13,6 +13,7 @@ * ==================================================== */ +#define _GNU_SOURCE #include "libm.h" static float ponef(float), qonef(float); @@ -73,14 +74,13 @@ float j1f(float x) return 1/(x*x); if (ix >= 0x40000000) /* |x| >= 2 */ return common(ix, fabsf(x), 0, sign); - if (ix >= 0x32000000) { /* |x| >= 2**-27 */ + if (ix >= 0x39000000) { /* |x| >= 2**-13 */ z = x*x; r = z*(r00+z*(r01+z*(r02+z*r03))); s = 1+z*(s01+z*(s02+z*(s03+z*(s04+z*s05)))); z = 0.5f + r/s; } else - /* raise inexact if x!=0 */ - z = 0.5f + x; + z = 0.5f; return z*x; } @@ -113,7 +113,7 @@ float y1f(float x) return 1/x; if (ix >= 0x40000000) /* |x| >= 2.0 */ return common(ix,x,1,0); - if (ix < 0x32000000) /* x < 2**-27 */ + if (ix < 0x33000000) /* x < 2**-25 */ return -tpi/x; z = x*x; u = U0[0]+z*(U0[1]+z*(U0[2]+z*(U0[3]+z*U0[4]))); @@ -198,14 +198,14 @@ static const float ps2[5] = { static float ponef(float x) { const float *p,*q; - float z,r,s; + float_t z,r,s; uint32_t ix; GET_FLOAT_WORD(ix, x); ix &= 0x7fffffff; if (ix >= 0x41000000){p = pr8; q = ps8;} - else if (ix >= 0x40f71c58){p = pr5; q = ps5;} - else if (ix >= 0x4036db68){p = pr3; q = ps3;} + else if (ix >= 0x409173eb){p = pr5; q = ps5;} + else if (ix >= 0x4036d917){p = pr3; q = ps3;} else /*ix >= 0x40000000*/ {p = pr2; q = ps2;} z = 1.0f/(x*x); r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5])))); @@ -294,14 +294,14 @@ static const float qs2[6] = { static float qonef(float x) { const float *p,*q; - float s,r,z; + float_t s,r,z; uint32_t ix; GET_FLOAT_WORD(ix, x); ix &= 0x7fffffff; - if (ix >= 0x40200000){p = qr8; q = qs8;} - else if (ix >= 0x40f71c58){p = qr5; q = qs5;} - else if (ix >= 0x4036db68){p = qr3; q = qs3;} + if (ix >= 0x41000000){p = qr8; q = qs8;} + else if (ix >= 0x409173eb){p = qr5; q = qs5;} + else if (ix >= 0x4036d917){p = qr3; q = qs3;} else /*ix >= 0x40000000*/ {p = qr2; q = qs2;} z = 1.0f/(x*x); r = p[0]+z*(p[1]+z*(p[2]+z*(p[3]+z*(p[4]+z*p[5]))));