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📄 catrig.c(18.56 KB)
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📄 catrigl.c(10.37 KB)
📄 e_acos.c(3.38 KB)
📄 e_acosf.c(1.99 KB)
📄 e_acosh.c(1.63 KB)
📄 e_acoshf.c(1.27 KB)
📄 e_acoshl.c(2.19 KB)
📄 e_acosl.c(2.16 KB)
📄 e_asin.c(3.55 KB)
📄 e_asinf.c(1.58 KB)
📄 e_asinl.c(1.85 KB)
📄 e_atan2.c(3.74 KB)
📄 e_atan2f.c(2.63 KB)
📄 e_atan2l.c(3.42 KB)
📄 e_atanh.c(1.64 KB)
📄 e_atanhf.c(1.12 KB)
📄 e_atanhl.c(1.76 KB)
📄 e_cosh.c(2.21 KB)
📄 e_coshf.c(1.45 KB)
📄 e_coshl.c(4 KB)
📄 e_exp.c(5.07 KB)
📄 e_expf.c(2.7 KB)
📄 e_fmod.c(3.34 KB)
📄 e_fmodf.c(2.59 KB)
📄 e_fmodl.c(3.77 KB)
📄 e_gamma.c(725 B)
📄 e_gamma_r.c(801 B)
📄 e_gammaf.c(814 B)
📄 e_gammaf_r.c(890 B)
📄 e_hypot.c(3.22 KB)
📄 e_hypotf.c(2.15 KB)
📄 e_hypotl.c(3.16 KB)
📄 e_j0.c(14.39 KB)
📄 e_j0f.c(10.31 KB)
📄 e_j1.c(14.12 KB)
📄 e_j1f.c(9.98 KB)
📄 e_jn.c(7.08 KB)
📄 e_jnf.c(4.75 KB)
📄 e_lgamma.c(819 B)
📄 e_lgamma_r.c(10.7 KB)
📄 e_lgammaf.c(820 B)
📄 e_lgammaf_r.c(5.82 KB)
📄 e_lgammal.c(599 B)
📄 e_log.c(4.42 KB)
📄 e_log10.c(2.5 KB)
📄 e_log10f.c(1.93 KB)
📄 e_log2.c(3.64 KB)
📄 e_log2f.c(2.37 KB)
📄 e_logf.c(2.36 KB)
📄 e_pow.c(9.84 KB)
📄 e_powf.c(7.34 KB)
📄 e_rem_pio2.c(4.7 KB)
📄 e_rem_pio2f.c(1.96 KB)
📄 e_remainder.c(1.75 KB)
📄 e_remainderf.c(1.41 KB)
📄 e_remainderl.c(1.55 KB)
📄 e_scalb.c(1.07 KB)
📄 e_scalbf.c(1.06 KB)
📄 e_sinh.c(2.03 KB)
📄 e_sinhf.c(1.43 KB)
📄 e_sinhl.c(4.12 KB)
📄 e_sqrt.c(14.12 KB)
📄 e_sqrtf.c(1.91 KB)
📄 e_sqrtl.c(4.28 KB)
📄 fenv-softfloat.h(4.96 KB)
📄 imprecise.c(2.08 KB)
📄 k_cos.c(2.75 KB)
📄 k_cosf.c(1.23 KB)
📄 k_exp.c(3.55 KB)
📄 k_expf.c(2.67 KB)
📄 k_log.h(3.34 KB)
📄 k_logf.h(992 B)
📄 k_rem_pio2.c(15.51 KB)
📄 k_sin.c(2.27 KB)
📄 k_sincos.h(1.7 KB)
📄 k_sincosf.h(1.38 KB)
📄 k_sincosl.h(4.82 KB)
📄 k_sinf.c(1.21 KB)
📄 k_tan.c(3.93 KB)
📄 k_tanf.c(1.97 KB)
📄 math.h(13.92 KB)
📄 math_private.h(24.72 KB)
📄 s_asinh.c(1.64 KB)
📄 s_asinhf.c(1.32 KB)
📄 s_asinhl.c(2.41 KB)
📄 s_atan.c(4.08 KB)
📄 s_atanf.c(2.42 KB)
📄 s_atanl.c(2.32 KB)
📄 s_carg.c(1.55 KB)
📄 s_cargf.c(1.55 KB)
📄 s_cargl.c(1.57 KB)
📄 s_cbrt.c(4.03 KB)
📄 s_cbrtf.c(1.85 KB)
📄 s_cbrtl.c(3.34 KB)
📄 s_ccosh.c(5.01 KB)
📄 s_ccoshf.c(3.08 KB)
📄 s_ceil.c(1.73 KB)
📄 s_ceilf.c(1.24 KB)
📄 s_ceill.c(2.38 KB)
📄 s_cexp.c(2.88 KB)
📄 s_cexpf.c(2.85 KB)
📄 s_cimag.c(1.53 KB)
📄 s_cimagf.c(1.53 KB)
📄 s_cimagl.c(1.55 KB)
📄 s_clog.c(5.06 KB)
📄 s_clogf.c(5.01 KB)
📄 s_clogl.c(5.49 KB)
📄 s_conj.c(1.51 KB)
📄 s_conjf.c(1.52 KB)
📄 s_conjl.c(1.53 KB)
📄 s_copysign.c(808 B)
📄 s_copysignf.c(905 B)
📄 s_copysignl.c(1.57 KB)
📄 s_cos.c(2.19 KB)
📄 s_cosf.c(2.2 KB)
📄 s_cosl.c(2.55 KB)
📄 s_cpow.c(1.8 KB)
📄 s_cpowf.c(1.79 KB)
📄 s_cpowl.c(1.83 KB)
📄 s_cproj.c(1.74 KB)
📄 s_cprojf.c(1.66 KB)
📄 s_cprojl.c(1.68 KB)
📄 s_creal.c(1.45 KB)
📄 s_crealf.c(1.45 KB)
📄 s_creall.c(1.46 KB)
📄 s_csinh.c(5.01 KB)
📄 s_csinhf.c(3.06 KB)
📄 s_csqrt.c(3.29 KB)
📄 s_csqrtf.c(2.65 KB)
📄 s_csqrtl.c(3.78 KB)
📄 s_ctanh.c(4.32 KB)
📄 s_ctanhf.c(2.45 KB)
📄 s_erf.c(11 KB)
📄 s_erff.c(5.11 KB)
📄 s_exp2.c(14.03 KB)
📄 s_exp2f.c(4.14 KB)
📄 s_expm1.c(7.18 KB)
📄 s_expm1f.c(3.41 KB)
📄 s_fabs.c(677 B)
📄 s_fabsf.c(765 B)
📄 s_fabsl.c(1.68 KB)
📄 s_fdim.c(1.7 KB)
📄 s_finite.c(700 B)
📄 s_finitef.c(796 B)
📄 s_floor.c(1.74 KB)
📄 s_floorf.c(1.41 KB)
📄 s_floorl.c(2.38 KB)
📄 s_fma.c(7.92 KB)
📄 s_fmaf.c(2.57 KB)
📄 s_fmal.c(7.38 KB)
📄 s_fmax.c(2.01 KB)
📄 s_fmaxf.c(1.88 KB)
📄 s_fmaxl.c(1.98 KB)
📄 s_fmin.c(2.01 KB)
📄 s_fminf.c(1.88 KB)
📄 s_fminl.c(1.98 KB)
📄 s_frexp.c(1.31 KB)
📄 s_frexpf.c(1.02 KB)
📄 s_frexpl.c(2 KB)
📄 s_ilogb.c(1.14 KB)
📄 s_ilogbf.c(976 B)
📄 s_ilogbl.c(1.21 KB)
📄 s_isfinite.c(1.72 KB)
📄 s_isnan.c(2.1 KB)
📄 s_isnormal.c(1.78 KB)
📄 s_llrint.c(156 B)
📄 s_llrintf.c(157 B)
📄 s_llrintl.c(163 B)
📄 s_llround.c(215 B)
📄 s_llroundf.c(216 B)
📄 s_llroundl.c(222 B)
📄 s_log1p.c(5.6 KB)
📄 s_log1pf.c(3.14 KB)
📄 s_logb.c(1.13 KB)
📄 s_logbf.c(1023 B)
📄 s_logbl.c(1.24 KB)
📄 s_lrint.c(2.1 KB)
📄 s_lrintf.c(151 B)
📄 s_lrintl.c(157 B)
📄 s_lround.c(2.45 KB)
📄 s_lroundf.c(208 B)
📄 s_lroundl.c(214 B)
📄 s_modf.c(1.88 KB)
📄 s_modff.c(1.39 KB)
📄 s_modfl.c(3.41 KB)
📄 s_nan.c(3.32 KB)
📄 s_nearbyint.c(2.29 KB)
📄 s_nextafter.c(2.03 KB)
📄 s_nextafterf.c(1.61 KB)
📄 s_nextafterl.c(2.02 KB)
📄 s_nexttoward.c(1.75 KB)
📄 s_nexttowardf.c(1.42 KB)
📄 s_remquo.c(3.86 KB)
📄 s_remquof.c(3.02 KB)
📄 s_remquol.c(4.42 KB)
📄 s_rint.c(2.33 KB)
📄 s_rintf.c(1.22 KB)
📄 s_rintl.c(2.77 KB)
📄 s_round.c(1.83 KB)
📄 s_roundf.c(1.74 KB)
📄 s_roundl.c(1.84 KB)
📄 s_scalbln.c(1.82 KB)
📄 s_scalbn.c(1.9 KB)
📄 s_scalbnf.c(1.67 KB)
📄 s_scalbnl.c(1.9 KB)
📄 s_signbit.c(1.7 KB)
📄 s_signgam.c(61 B)
📄 s_significand.c(727 B)
📄 s_significandf.c(691 B)
📄 s_sin.c(2.18 KB)
📄 s_sincos.c(1.6 KB)
📄 s_sincosf.c(2.57 KB)
📄 s_sincosl.c(2.67 KB)
📄 s_sinf.c(2.18 KB)
📄 s_sinl.c(2.49 KB)
📄 s_tan.c(2.02 KB)
📄 s_tanf.c(1.97 KB)
📄 s_tanh.c(2.02 KB)
📄 s_tanhf.c(1.39 KB)
📄 s_tanhl.c(5.09 KB)
📄 s_tanl.c(2.6 KB)
📄 s_tgammaf.c(1.75 KB)
📄 s_trunc.c(1.5 KB)
📄 s_truncf.c(1.21 KB)
📄 s_truncl.c(1.61 KB)
📄 w_cabs.c(365 B)
📄 w_cabsf.c(350 B)
📄 w_cabsl.c(357 B)
📄 w_drem.c(211 B)
📄 w_dremf.c(254 B)

Editing: e_lgammaf_r.c

/* e_lgammaf_r.c -- float version of e_lgamma_r.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 * Conversion to float fixed By Steven G. Kargl.
 */

/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include "math.h"
#include "math_private.h"

static const volatile float vzero = 0;

static const float
zero=  0,
half=  0.5,
one =  1,
pi  =  3.1415927410e+00, /* 0x40490fdb */
/*
 * Domain y in [0x1p-27, 0.27], range ~[-3.4599e-10, 3.4590e-10]:
 * |(lgamma(2 - y) + 0.5 * y) / y - a(y)| < 2**-31.4
 */
a0  =  7.72156641e-02, /* 0x3d9e233f */
a1  =  3.22467119e-01, /* 0x3ea51a69 */
a2  =  6.73484802e-02, /* 0x3d89ee00 */
a3  =  2.06395667e-02, /* 0x3ca9144f */
a4  =  6.98275631e-03, /* 0x3be4cf9b */
a5  =  4.11768444e-03, /* 0x3b86eda4 */
/*
 * Domain x in [tc-0.24, tc+0.28], range ~[-5.6577e-10, 5.5677e-10]:
 * |(lgamma(x) - tf) - t(x - tc)| < 2**-30.8.
 */
tc  =  1.46163213e+00, /* 0x3fbb16c3 */
tf  = -1.21486291e-01, /* 0xbdf8cdce */
t0  = -2.94064460e-11, /* 0xae0154b7 */
t1  = -2.35939837e-08, /* 0xb2caabb8 */
t2  =  4.83836412e-01, /* 0x3ef7b968 */
t3  = -1.47586212e-01, /* 0xbe1720d7 */
t4  =  6.46013096e-02, /* 0x3d844db1 */
t5  = -3.28450352e-02, /* 0xbd068884 */
t6  =  1.86483748e-02, /* 0x3c98c47a */
t7  = -9.89206228e-03, /* 0xbc221251 */
/*
 * Domain y in [-0.1, 0.232], range ~[-8.4931e-10, 8.7794e-10]:
 * |(lgamma(1 + y) + 0.5 * y) / y - u(y) / v(y)| < 2**-31.2
 */
u0  = -7.72156641e-02, /* 0xbd9e233f */
u1  =  7.36789703e-01, /* 0x3f3c9e40 */
u2  =  4.95649040e-01, /* 0x3efdc5b6 */
v1  =  1.10958421e+00, /* 0x3f8e06db */
v2  =  2.10598111e-01, /* 0x3e57a708 */
v3  = -1.02995494e-02, /* 0xbc28bf71 */
/*
 * Domain x in (2, 3], range ~[-5.5189e-11, 5.2317e-11]:
 * |(lgamma(y+2) - 0.5 * y) / y - s(y)/r(y)| < 2**-35.0
 * with y = x - 2.
 */
s0 = -7.72156641e-02, /* 0xbd9e233f */
s1 =  2.69987404e-01, /* 0x3e8a3bca */
s2 =  1.42851010e-01, /* 0x3e124789 */
s3 =  1.19389519e-02, /* 0x3c439b98 */
r1 =  6.79650068e-01, /* 0x3f2dfd8c */
r2 =  1.16058730e-01, /* 0x3dedb033 */
r3 =  3.75673687e-03, /* 0x3b763396 */
/*
 * Domain z in [8, 0x1p24], range ~[-1.2640e-09, 1.2640e-09]:
 * |lgamma(x) - (x - 0.5) * (log(x) - 1) - w(1/x)| < 2**-29.6.
 */
w0 =  4.18938547e-01, /* 0x3ed67f1d */
w1 =  8.33332464e-02, /* 0x3daaaa9f */
w2 = -2.76129087e-03; /* 0xbb34f6c6 */

static float
sin_pif(float x)
{
	volatile float vz;
	float y,z;
	int n;

y = -x;

vz = y+0x1p23F;			/* depend on 0 <= y < 0x1p23 */
	z = vz-0x1p23F;			/* rintf(y) for the above range */
	if (z == y)
	    return zero;

vz = y+0x1p21F;
	GET_FLOAT_WORD(n,vz);		/* bits for rounded y (units 0.25) */
	z = vz-0x1p21F;			/* y rounded to a multiple of 0.25 */
	if (z > y) {
	    z -= 0.25F;			/* adjust to round down */
	    n--;
	}
	n &= 7;				/* octant of y mod 2 */
	y = y - z + n * 0.25F;		/* y mod 2 */

switch (n) {
	    case 0:   y =  __kernel_sindf(pi*y); break;
	    case 1:
	    case 2:   y =  __kernel_cosdf(pi*((float)0.5-y)); break;
	    case 3:
	    case 4:   y =  __kernel_sindf(pi*(one-y)); break;
	    case 5:
	    case 6:   y = -__kernel_cosdf(pi*(y-(float)1.5)); break;
	    default:  y =  __kernel_sindf(pi*(y-(float)2.0)); break;
	    }
	return -y;
}

float
__ieee754_lgammaf_r(float x, int *signgamp)
{
	float nadj,p,p1,p2,q,r,t,w,y,z;
	int32_t hx;
	int i,ix;

GET_FLOAT_WORD(hx,x);

/* purge +-Inf and NaNs */
	*signgamp = 1;
	ix = hx&0x7fffffff;
	if(ix>=0x7f800000) return x*x;

/* purge +-0 and tiny arguments */
	*signgamp = 1-2*((uint32_t)hx>>31);
	if(ix<0x32000000) {		/* |x|<2**-27, return -log(|x|) */
	    if(ix==0)
	        return one/vzero;
	    return -__ieee754_logf(fabsf(x));
	}

/* purge negative integers and start evaluation for other x < 0 */
	if(hx<0) {
	    *signgamp = 1;
	    if(ix>=0x4b000000) 		/* |x|>=2**23, must be -integer */
		return one/vzero;
	    t = sin_pif(x);
	    if(t==zero) return one/vzero; /* -integer */
	    nadj = __ieee754_logf(pi/fabsf(t*x));
	    if(t<zero) *signgamp = -1;
	    x = -x;
	}

/* purge 1 and 2 */
	if (ix==0x3f800000||ix==0x40000000) r = 0;
    /* for x < 2.0 */
	else if(ix<0x40000000) {
	    if(ix<=0x3f666666) { 	/* lgamma(x) = lgamma(x+1)-log(x) */
		r = -__ieee754_logf(x);
		if(ix>=0x3f3b4a20) {y = one-x; i= 0;}
		else if(ix>=0x3e6d3308) {y= x-(tc-one); i=1;}
	  	else {y = x; i=2;}
	    } else {
	  	r = zero;
	        if(ix>=0x3fdda618) {y=2-x;i=0;} /* [1.7316,2] */
	        else if(ix>=0x3F9da620) {y=x-tc;i=1;} /* [1.23,1.73] */
		else {y=x-one;i=2;}
	    }
	    switch(i) {
	      case 0:
		z = y*y;
		p1 = a0+z*(a2+z*a4);
		p2 = z*(a1+z*(a3+z*a5));
		p  = y*p1+p2;
		r  += p-y/2; break;
	      case 1:
		p = t0+y*t1+y*y*(t2+y*(t3+y*(t4+y*(t5+y*(t6+y*t7)))));
		r += tf + p; break;
	      case 2:
		p1 = y*(u0+y*(u1+y*u2));
		p2 = one+y*(v1+y*(v2+y*v3));
		r += p1/p2-y/2;
	    }
	}
    /* x < 8.0 */
	else if(ix<0x41000000) {
	    i = x;
	    y = x-i;
	    p = y*(s0+y*(s1+y*(s2+y*s3)));
	    q = one+y*(r1+y*(r2+y*r3));
	    r = y/2+p/q;
	    z = one;	/* lgamma(1+s) = log(s) + lgamma(s) */
	    switch(i) {
	    case 7: z *= (y+6);		/* FALLTHRU */
	    case 6: z *= (y+5);		/* FALLTHRU */
	    case 5: z *= (y+4);		/* FALLTHRU */
	    case 4: z *= (y+3);		/* FALLTHRU */
	    case 3: z *= (y+2);		/* FALLTHRU */
		    r += __ieee754_logf(z); break;
	    }
    /* 8.0 <= x < 2**27 */
	} else if (ix < 0x4d000000) {
	    t = __ieee754_logf(x);
	    z = one/x;
	    y = z*z;
	    w = w0+z*(w1+y*w2);
	    r = (x-half)*(t-one)+w;
	} else
    /* 2**27 <= x <= inf */
	    r =  x*(__ieee754_logf(x)-one);
	if(hx<0) r = nadj - r;
	return r;
}

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