📄 c99_functions.c
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a = REALPART (z); b = IMAGPART (z); COMPLEX_ASSIGN (v, cosl (b), sinl (b)); return expl (a) * v;}#endif/* log(z) = log (cabs(z)) + i*carg(z) */#if !defined(HAVE_CLOGF)#define HAVE_CLOGF 1float complexclogf (float complex z){ float complex v; COMPLEX_ASSIGN (v, logf (cabsf (z)), cargf (z)); return v;}#endif#if !defined(HAVE_CLOG)#define HAVE_CLOG 1double complexclog (double complex z){ double complex v; COMPLEX_ASSIGN (v, log (cabs (z)), carg (z)); return v;}#endif#if !defined(HAVE_CLOGL) && defined(HAVE_LOGL) && defined(HAVE_CABSL) && defined(HAVE_CARGL)#define HAVE_CLOGL 1long double complexclogl (long double complex z){ long double complex v; COMPLEX_ASSIGN (v, logl (cabsl (z)), cargl (z)); return v;}#endif/* log10(z) = log10 (cabs(z)) + i*carg(z) */#if !defined(HAVE_CLOG10F)#define HAVE_CLOG10F 1float complexclog10f (float complex z){ float complex v; COMPLEX_ASSIGN (v, log10f (cabsf (z)), cargf (z)); return v;}#endif#if !defined(HAVE_CLOG10)#define HAVE_CLOG10 1double complexclog10 (double complex z){ double complex v; COMPLEX_ASSIGN (v, log10 (cabs (z)), carg (z)); return v;}#endif#if !defined(HAVE_CLOG10L) && defined(HAVE_LOG10L) && defined(HAVE_CABSL) && defined(HAVE_CARGL)#define HAVE_CLOG10L 1long double complexclog10l (long double complex z){ long double complex v; COMPLEX_ASSIGN (v, log10l (cabsl (z)), cargl (z)); return v;}#endif/* pow(base, power) = cexp (power * clog (base)) */#if !defined(HAVE_CPOWF)#define HAVE_CPOWF 1float complexcpowf (float complex base, float complex power){ return cexpf (power * clogf (base));}#endif#if !defined(HAVE_CPOW)#define HAVE_CPOW 1double complexcpow (double complex base, double complex power){ return cexp (power * clog (base));}#endif#if !defined(HAVE_CPOWL) && defined(HAVE_CEXPL) && defined(HAVE_CLOGL)#define HAVE_CPOWL 1long double complexcpowl (long double complex base, long double complex power){ return cexpl (power * clogl (base));}#endif/* sqrt(z). Algorithm pulled from glibc. */#if !defined(HAVE_CSQRTF)#define HAVE_CSQRTF 1float complexcsqrtf (float complex z){ float re, im; float complex v; re = REALPART (z); im = IMAGPART (z); if (im == 0) { if (re < 0) { COMPLEX_ASSIGN (v, 0, copysignf (sqrtf (-re), im)); } else { COMPLEX_ASSIGN (v, fabsf (sqrtf (re)), copysignf (0, im)); } } else if (re == 0) { float r; r = sqrtf (0.5 * fabsf (im)); COMPLEX_ASSIGN (v, r, copysignf (r, im)); } else { float d, r, s; d = hypotf (re, im); /* Use the identity 2 Re res Im res = Im x to avoid cancellation error in d +/- Re x. */ if (re > 0) { r = sqrtf (0.5 * d + 0.5 * re); s = (0.5 * im) / r; } else { s = sqrtf (0.5 * d - 0.5 * re); r = fabsf ((0.5 * im) / s); } COMPLEX_ASSIGN (v, r, copysignf (s, im)); } return v;}#endif#if !defined(HAVE_CSQRT)#define HAVE_CSQRT 1double complexcsqrt (double complex z){ double re, im; double complex v; re = REALPART (z); im = IMAGPART (z); if (im == 0) { if (re < 0) { COMPLEX_ASSIGN (v, 0, copysign (sqrt (-re), im)); } else { COMPLEX_ASSIGN (v, fabs (sqrt (re)), copysign (0, im)); } } else if (re == 0) { double r; r = sqrt (0.5 * fabs (im)); COMPLEX_ASSIGN (v, r, copysign (r, im)); } else { double d, r, s; d = hypot (re, im); /* Use the identity 2 Re res Im res = Im x to avoid cancellation error in d +/- Re x. */ if (re > 0) { r = sqrt (0.5 * d + 0.5 * re); s = (0.5 * im) / r; } else { s = sqrt (0.5 * d - 0.5 * re); r = fabs ((0.5 * im) / s); } COMPLEX_ASSIGN (v, r, copysign (s, im)); } return v;}#endif#if !defined(HAVE_CSQRTL) && defined(HAVE_COPYSIGNL) && defined(HAVE_SQRTL) && defined(HAVE_FABSL) && defined(HAVE_HYPOTL)#define HAVE_CSQRTL 1long double complexcsqrtl (long double complex z){ long double re, im; long double complex v; re = REALPART (z); im = IMAGPART (z); if (im == 0) { if (re < 0) { COMPLEX_ASSIGN (v, 0, copysignl (sqrtl (-re), im)); } else { COMPLEX_ASSIGN (v, fabsl (sqrtl (re)), copysignl (0, im)); } } else if (re == 0) { long double r; r = sqrtl (0.5 * fabsl (im)); COMPLEX_ASSIGN (v, copysignl (r, im), r); } else { long double d, r, s; d = hypotl (re, im); /* Use the identity 2 Re res Im res = Im x to avoid cancellation error in d +/- Re x. */ if (re > 0) { r = sqrtl (0.5 * d + 0.5 * re); s = (0.5 * im) / r; } else { s = sqrtl (0.5 * d - 0.5 * re); r = fabsl ((0.5 * im) / s); } COMPLEX_ASSIGN (v, r, copysignl (s, im)); } return v;}#endif/* sinh(a + i b) = sinh(a) cos(b) + i cosh(a) sin(b) */#if !defined(HAVE_CSINHF)#define HAVE_CSINHF 1float complexcsinhf (float complex a){ float r, i; float complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sinhf (r) * cosf (i), coshf (r) * sinf (i)); return v;}#endif#if !defined(HAVE_CSINH)#define HAVE_CSINH 1double complexcsinh (double complex a){ double r, i; double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sinh (r) * cos (i), cosh (r) * sin (i)); return v;}#endif#if !defined(HAVE_CSINHL) && defined(HAVE_COSL) && defined(HAVE_COSHL) && defined(HAVE_SINL) && defined(HAVE_SINHL)#define HAVE_CSINHL 1long double complexcsinhl (long double complex a){ long double r, i; long double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sinhl (r) * cosl (i), coshl (r) * sinl (i)); return v;}#endif/* cosh(a + i b) = cosh(a) cos(b) - i sinh(a) sin(b) */#if !defined(HAVE_CCOSHF)#define HAVE_CCOSHF 1float complexccoshf (float complex a){ float r, i; float complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, coshf (r) * cosf (i), - (sinhf (r) * sinf (i))); return v;}#endif#if !defined(HAVE_CCOSH)#define HAVE_CCOSH 1double complexccosh (double complex a){ double r, i; double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, cosh (r) * cos (i), - (sinh (r) * sin (i))); return v;}#endif#if !defined(HAVE_CCOSHL) && defined(HAVE_COSL) && defined(HAVE_COSHL) && defined(HAVE_SINL) && defined(HAVE_SINHL)#define HAVE_CCOSHL 1long double complexccoshl (long double complex a){ long double r, i; long double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, coshl (r) * cosl (i), - (sinhl (r) * sinl (i))); return v;}#endif/* tanh(a + i b) = (tanh(a) + i tan(b)) / (1 - i tanh(a) tan(b)) */#if !defined(HAVE_CTANHF)#define HAVE_CTANHF 1float complexctanhf (float complex a){ float rt, it; float complex n, d; rt = tanhf (REALPART (a)); it = tanf (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif#if !defined(HAVE_CTANH)#define HAVE_CTANH 1double complexctanh (double complex a){ double rt, it; double complex n, d; rt = tanh (REALPART (a)); it = tan (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif#if !defined(HAVE_CTANHL) && defined(HAVE_TANL) && defined(HAVE_TANHL)#define HAVE_CTANHL 1long double complexctanhl (long double complex a){ long double rt, it; long double complex n, d; rt = tanhl (REALPART (a)); it = tanl (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif/* sin(a + i b) = sin(a) cosh(b) + i cos(a) sinh(b) */#if !defined(HAVE_CSINF)#define HAVE_CSINF 1float complexcsinf (float complex a){ float r, i; float complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sinf (r) * coshf (i), cosf (r) * sinhf (i)); return v;}#endif#if !defined(HAVE_CSIN)#define HAVE_CSIN 1double complexcsin (double complex a){ double r, i; double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sin (r) * cosh (i), cos (r) * sinh (i)); return v;}#endif#if !defined(HAVE_CSINL) && defined(HAVE_COSL) && defined(HAVE_COSHL) && defined(HAVE_SINL) && defined(HAVE_SINHL)#define HAVE_CSINL 1long double complexcsinl (long double complex a){ long double r, i; long double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, sinl (r) * coshl (i), cosl (r) * sinhl (i)); return v;}#endif/* cos(a + i b) = cos(a) cosh(b) - i sin(a) sinh(b) */#if !defined(HAVE_CCOSF)#define HAVE_CCOSF 1float complexccosf (float complex a){ float r, i; float complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, cosf (r) * coshf (i), - (sinf (r) * sinhf (i))); return v;}#endif#if !defined(HAVE_CCOS)#define HAVE_CCOS 1double complexccos (double complex a){ double r, i; double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, cos (r) * cosh (i), - (sin (r) * sinh (i))); return v;}#endif#if !defined(HAVE_CCOSL) && defined(HAVE_COSL) && defined(HAVE_COSHL) && defined(HAVE_SINL) && defined(HAVE_SINHL)#define HAVE_CCOSL 1long double complexccosl (long double complex a){ long double r, i; long double complex v; r = REALPART (a); i = IMAGPART (a); COMPLEX_ASSIGN (v, cosl (r) * coshl (i), - (sinl (r) * sinhl (i))); return v;}#endif/* tan(a + i b) = (tan(a) + i tanh(b)) / (1 - i tan(a) tanh(b)) */#if !defined(HAVE_CTANF)#define HAVE_CTANF 1float complexctanf (float complex a){ float rt, it; float complex n, d; rt = tanf (REALPART (a)); it = tanhf (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif#if !defined(HAVE_CTAN)#define HAVE_CTAN 1double complexctan (double complex a){ double rt, it; double complex n, d; rt = tan (REALPART (a)); it = tanh (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif#if !defined(HAVE_CTANL) && defined(HAVE_TANL) && defined(HAVE_TANHL)#define HAVE_CTANL 1long double complexctanl (long double complex a){ long double rt, it; long double complex n, d; rt = tanl (REALPART (a)); it = tanhl (IMAGPART (a)); COMPLEX_ASSIGN (n, rt, it); COMPLEX_ASSIGN (d, 1, - (rt * it)); return n / d;}#endif
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