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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: s_erff.c

/* s_erff.c -- float version of s_erf.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

/*
 * ====================================================
 * 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"

/* XXX Prevent compilers from erroneously constant folding: */
static const volatile float tiny = 1e-30;

static const float
half= 0.5,
one = 1,
two = 2,
erx = 8.42697144e-01,			/* 0x3f57bb00 */
/*
 * In the domain [0, 2**-14], only the first term in the power series
 * expansion of erf(x) is used.  The magnitude of the first neglected
 * terms is less than 2**-42.
 */
efx = 1.28379166e-01, /* 0x3e0375d4 */
efx8= 1.02703333e+00, /* 0x3f8375d4 */
/*
 * Domain [0, 0.84375], range ~[-5.4419e-10, 5.5179e-10]:
 * |(erf(x) - x)/x - pp(x)/qq(x)| < 2**-31
 */
pp0  =  1.28379166e-01, /* 0x3e0375d4 */
pp1  = -3.36030394e-01, /* 0xbeac0c2d */
pp2  = -1.86261395e-03, /* 0xbaf422f4 */
qq1  =  3.12324315e-01, /* 0x3e9fe8f9 */
qq2  =  2.16070414e-02, /* 0x3cb10140 */
qq3  = -1.98859372e-03, /* 0xbb025311 */
/*
 * Domain [0.84375, 1.25], range ~[-1.023e-9, 1.023e-9]:
 * |(erf(x) - erx) - pa(x)/qa(x)| < 2**-31
 */
pa0  =  3.65041046e-06, /* 0x3674f993 */
pa1  =  4.15109307e-01, /* 0x3ed48935 */
pa2  = -2.09395722e-01, /* 0xbe566bd5 */
pa3  =  8.67677554e-02, /* 0x3db1b34b */
qa1  =  4.95560974e-01, /* 0x3efdba2b */
qa2  =  3.71248513e-01, /* 0x3ebe1449 */
qa3  =  3.92478965e-02, /* 0x3d20c267 */
/*
 * Domain [1.25,1/0.35], range ~[-4.821e-9, 4.927e-9]:
 * |log(x*erfc(x)) + x**2 + 0.5625 - ra(x)/sa(x)| < 2**-28
 */
ra0  = -9.88156721e-03, /* 0xbc21e64c */
ra1  = -5.43658376e-01, /* 0xbf0b2d32 */
ra2  = -1.66828310e+00, /* 0xbfd58a4d */
ra3  = -6.91554189e-01, /* 0xbf3109b2 */
sa1  =  4.48581553e+00, /* 0x408f8bcd */
sa2  =  4.10799170e+00, /* 0x408374ab */
sa3  =  5.53855181e-01, /* 0x3f0dc974 */
/*
 * Domain [2.85715, 11], range ~[-1.484e-9, 1.505e-9]:
 * |log(x*erfc(x)) + x**2 + 0.5625 - rb(x)/sb(x)| < 2**-30
 */
rb0  = -9.86496918e-03, /* 0xbc21a0ae */
rb1  = -5.48049808e-01, /* 0xbf0c4cfe */
rb2  = -1.84115684e+00, /* 0xbfebab07 */
sb1  =  4.87132740e+00, /* 0x409be1ea */
sb2  =  3.04982710e+00, /* 0x4043305e */
sb3  = -7.61900663e-01; /* 0xbf430bec */

float
erff(float x)
{
	int32_t hx,ix,i;
	float R,S,P,Q,s,y,z,r;
	GET_FLOAT_WORD(hx,x);
	ix = hx&0x7fffffff;
	if(ix>=0x7f800000) {		/* erff(nan)=nan */
	    i = ((u_int32_t)hx>>31)<<1;
	    return (float)(1-i)+one/x;	/* erff(+-inf)=+-1 */
	}

if(ix < 0x3f580000) {		/* |x|<0.84375 */
	    if(ix < 0x38800000) { 	/* |x|<2**-14 */
	        if (ix < 0x04000000)	/* |x|<0x1p-119 */
		    return (8*x+efx8*x)/8;	/* avoid spurious underflow */
		return x + efx*x;
	    }
	    z = x*x;
	    r = pp0+z*(pp1+z*pp2);
	    s = one+z*(qq1+z*(qq2+z*qq3));
	    y = r/s;
	    return x + x*y;
	}
	if(ix < 0x3fa00000) {		/* 0.84375 <= |x| < 1.25 */
	    s = fabsf(x)-one;
	    P = pa0+s*(pa1+s*(pa2+s*pa3));
	    Q = one+s*(qa1+s*(qa2+s*qa3));
	    if(hx>=0) return erx + P/Q; else return -erx - P/Q;
	}
	if (ix >= 0x40800000) {		/* inf>|x|>=4 */
	    if(hx>=0) return one-tiny; else return tiny-one;
	}
	x = fabsf(x);
 	s = one/(x*x);
	if(ix< 0x4036db8c) {	/* |x| < 2.85715 ~ 1/0.35 */
	    R=ra0+s*(ra1+s*(ra2+s*ra3));
	    S=one+s*(sa1+s*(sa2+s*sa3));
	} else {	/* |x| >= 2.85715 ~ 1/0.35 */
	    R=rb0+s*(rb1+s*rb2);
	    S=one+s*(sb1+s*(sb2+s*sb3));
	}
	SET_FLOAT_WORD(z,hx&0xffffe000);
	r  = expf(-z*z-0.5625F)*expf((z-x)*(z+x)+R/S);
	if(hx>=0) return one-r/x; else return  r/x-one;
}

float
erfcf(float x)
{
	int32_t hx,ix;
	float R,S,P,Q,s,y,z,r;
	GET_FLOAT_WORD(hx,x);
	ix = hx&0x7fffffff;
	if(ix>=0x7f800000) {			/* erfcf(nan)=nan */
						/* erfcf(+-inf)=0,2 */
	    return (float)(((u_int32_t)hx>>31)<<1)+one/x;
	}

if(ix < 0x3f580000) {		/* |x|<0.84375 */
	    if(ix < 0x33800000)  	/* |x|<2**-24 */
		return one-x;
	    z = x*x;
	    r = pp0+z*(pp1+z*pp2);
	    s = one+z*(qq1+z*(qq2+z*qq3));
	    y = r/s;
	    if(hx < 0x3e800000) {  	/* x<1/4 */
		return one-(x+x*y);
	    } else {
		r = x*y;
		r += (x-half);
	        return half - r ;
	    }
	}
	if(ix < 0x3fa00000) {		/* 0.84375 <= |x| < 1.25 */
	    s = fabsf(x)-one;
	    P = pa0+s*(pa1+s*(pa2+s*pa3));
	    Q = one+s*(qa1+s*(qa2+s*qa3));
	    if(hx>=0) {
	        z  = one-erx; return z - P/Q;
	    } else {
		z = erx+P/Q; return one+z;
	    }
	}
	if (ix < 0x41300000) {		/* |x|<11 */
	    x = fabsf(x);
 	    s = one/(x*x);
	    if(ix< 0x4036db8c) {	/* |x| < 2.85715 ~ 1/.35 */
		R=ra0+s*(ra1+s*(ra2+s*ra3));
		S=one+s*(sa1+s*(sa2+s*sa3));
	    } else {			/* |x| >= 2.85715 ~ 1/.35 */
		if(hx<0&&ix>=0x40a00000) return two-tiny;/* x < -5 */
		R=rb0+s*(rb1+s*rb2);
		S=one+s*(sb1+s*(sb2+s*sb3));
	    }
	    SET_FLOAT_WORD(z,hx&0xffffe000);
	    r  = expf(-z*z-0.5625F)*expf((z-x)*(z+x)+R/S);
	    if(hx>0) return r/x; else return two-r/x;
	} else {
	    if(hx>0) return tiny*tiny; else return two-tiny;
	}
}

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