/* Wrapper scalbl */ long double __scalbl (long double x, long double fn) { if (__glibc_unlikely (_LIB_VERSION == _SVID_)) return sysv_scalbl (x, fn); else { long double z = __ieee754_scalbl (x, fn); if (__glibc_unlikely (!__finitel (z) || z == 0.0L)) { if (__isnanl (z)) { if (!__isnanl (x) && !__isnanl (fn)) __set_errno (EDOM); } else if (__isinf_nsl (z)) { if (!__isinf_nsl (x) && !__isinf_nsl (fn)) __set_errno (ERANGE); } else { /* z == 0. */ if (x != 0.0L && !__isinf_nsl (fn)) __set_errno (ERANGE); } } return z; } }
__complex__ long double __cprojl (__complex__ long double x) { if (__isinf_nsl (__real__ x) || __isinf_nsl (__imag__ x)) { __complex__ long double res; __real__ res = INFINITY; __imag__ res = __copysignl (0.0, __imag__ x); return res; } return x; }
attribute_hidden long double _Complex __divtc3 (long double a, long double b, long double c, long double d) { long double denom, ratio, x, y; /* ??? We can get better behavior from logarithmic scaling instead of the division. But that would mean starting to link libgcc against libm. We could implement something akin to ldexp/frexp as gcc builtins fairly easily... */ if (fabsl (c) < fabsl (d)) { ratio = c / d; denom = (c * ratio) + d; x = ((a * ratio) + b) / denom; y = ((b * ratio) - a) / denom; } else { ratio = d / c; denom = (d * ratio) + c; x = ((b * ratio) + a) / denom; y = (b - (a * ratio)) / denom; } /* Recover infinities and zeros that computed as NaN+iNaN; the only cases are nonzero/zero, infinite/finite, and finite/infinite. */ if (isnan (x) && isnan (y)) { if (denom == 0.0 && (!isnan (a) || !isnan (b))) { x = __copysignl (INFINITY, c) * a; y = __copysignl (INFINITY, c) * b; } else if ((__isinf_nsl (a) || __isinf_nsl (b)) && isfinite (c) && isfinite (d)) { a = __copysignl (__isinf_nsl (a) ? 1 : 0, a); b = __copysignl (__isinf_nsl (b) ? 1 : 0, b); x = INFINITY * (a * c + b * d); y = INFINITY * (b * c - a * d); } else if ((__isinf_nsl (c) || __isinf_nsl (d)) && isfinite (a) && isfinite (b)) { c = __copysignl (__isinf_nsl (c) ? 1 : 0, c); d = __copysignl (__isinf_nsl (d) ? 1 : 0, d); x = 0.0 * (a * c + b * d); y = 0.0 * (b * c - a * d); } } return x + I * y; }
/* wrapper remainderl */ long double __remainderl (long double x, long double y) { if (((__builtin_expect (y == 0.0L, 0) && ! __isnanl (x)) || (__builtin_expect (__isinf_nsl (x), 0) && ! __isnanl (y))) && _LIB_VERSION != _IEEE_) return __kernel_standard (x, y, 228); /* remainder domain */ return __ieee754_remainderl (x, y); }
/* wrapper fmodl */ long double __fmodl (long double x, long double y) { if (__builtin_expect (__isinf_nsl (x) || y == 0.0L, 0) && _LIB_VERSION != _IEEE_ && !isnan (y) && !isnan (x)) /* fmod(+-Inf,y) or fmod(x,0) */ return __kernel_standard_l (x, y, 227); return __ieee754_fmodl (x, y); }
__complex__ long double __casinl (__complex__ long double x) { __complex__ long double res; if (isnan (__real__ x) || isnan (__imag__ x)) { if (__real__ x == 0.0) { res = x; } else if (__isinf_nsl (__real__ x) || __isinf_nsl (__imag__ x)) { __real__ res = __nanl (""); __imag__ res = __copysignl (HUGE_VALL, __imag__ x); } else { __real__ res = __nanl (""); __imag__ res = __nanl (""); } } else { __complex__ long double y; __real__ y = -__imag__ x; __imag__ y = __real__ x; y = __casinhl (y); __real__ res = __imag__ y; __imag__ res = -__real__ y; } return res; }
__complex__ long double __ctanl (__complex__ long double x) { __complex__ long double res; if (__builtin_expect (!isfinite (__real__ x) || !isfinite (__imag__ x), 0)) { if (__isinf_nsl (__imag__ x)) { __real__ res = __copysignl (0.0, __real__ x); __imag__ res = __copysignl (1.0, __imag__ x); } else if (__real__ x == 0.0) { res = x; } else { __real__ res = __nanl (""); __imag__ res = __nanl (""); if (__isinf_nsl (__real__ x)) feraiseexcept (FE_INVALID); } } else { long double sinrx, cosrx; long double den; const int t = (int) ((LDBL_MAX_EXP - 1) * M_LN2l / 2); int rcls = fpclassify (__real__ x); /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y)) = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */ if (__builtin_expect (rcls != FP_SUBNORMAL, 1)) { __sincosl (__real__ x, &sinrx, &cosrx); } else { sinrx = __real__ x; cosrx = 1.0; } if (fabsl (__imag__ x) > t) { /* Avoid intermediate overflow when the real part of the result may be subnormal. Ignoring negligible terms, the imaginary part is +/- 1, the real part is sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y). */ long double exp_2t = __ieee754_expl (2 * t); __imag__ res = __copysignl (1.0, __imag__ x); __real__ res = 4 * sinrx * cosrx; __imag__ x = fabsl (__imag__ x); __imag__ x -= t; __real__ res /= exp_2t; if (__imag__ x > t) { /* Underflow (original imaginary part of x has absolute value > 2t). */ __real__ res /= exp_2t; } else __real__ res /= __ieee754_expl (2 * __imag__ x); } else { long double sinhix, coshix; if (fabsl (__imag__ x) > LDBL_MIN) { sinhix = __ieee754_sinhl (__imag__ x); coshix = __ieee754_coshl (__imag__ x); } else { sinhix = __imag__ x; coshix = 1.0L; } if (fabsl (sinhix) > fabsl (cosrx) * LDBL_EPSILON) den = cosrx * cosrx + sinhix * sinhix; else den = cosrx * cosrx; __real__ res = sinrx * cosrx / den; __imag__ res = sinhix * coshix / den; } } return res; }
__complex__ long double __ctanl (__complex__ long double x) { __complex__ long double res; if (!isfinite (__real__ x) || !isfinite (__imag__ x)) { if (__isinfl (__imag__ x)) { __real__ res = __copysignl (0.0, __real__ x); __imag__ res = __copysignl (1.0, __imag__ x); } else if (__real__ x == 0.0) { res = x; } else { __real__ res = __nanl (""); __imag__ res = __nanl (""); if (__isinf_nsl (__real__ x)) feraiseexcept (FE_INVALID); } } else { long double sinrx, cosrx; long double den; const int t = (int) ((LDBL_MAX_EXP - 1) * M_LN2l / 2.0L); /* tan(x+iy) = (sin(2x) + i*sinh(2y))/(cos(2x) + cosh(2y)) = (sin(x)*cos(x) + i*sinh(y)*cosh(y)/(cos(x)^2 + sinh(y)^2). */ __sincosl (__real__ x, &sinrx, &cosrx); if (fabsl (__imag__ x) > t) { /* Avoid intermediate overflow when the real part of the result may be subnormal. Ignoring negligible terms, the imaginary part is +/- 1, the real part is sin(x)*cos(x)/sinh(y)^2 = 4*sin(x)*cos(x)/exp(2y). */ long double exp_2t = __ieee754_expl (2 * t); __imag__ res = __copysignl (1.0L, __imag__ x); __real__ res = 4 * sinrx * cosrx; __imag__ x = fabsl (__imag__ x); __imag__ x -= t; __real__ res /= exp_2t; if (__imag__ x > t) { /* Underflow (original imaginary part of x has absolute value > 2t). */ __real__ res /= exp_2t; } else __real__ res /= __ieee754_expl (2.0L * __imag__ x); } else { long double sinhix, coshix; if (fabsl (__imag__ x) > LDBL_MIN) { sinhix = __ieee754_sinhl (__imag__ x); coshix = __ieee754_coshl (__imag__ x); } else { sinhix = __imag__ x; coshix = 1.0L; } if (fabsl (sinhix) > fabsl (cosrx) * ldbl_eps) den = cosrx * cosrx + sinhix * sinhix; else den = cosrx * cosrx; __real__ res = sinrx * (cosrx / den); __imag__ res = sinhix * (coshix / den); } /* __gcc_qmul does not respect -0.0 so we need the following fixup. */ if ((__real__ res == 0.0L) && (__real__ x == 0.0L)) __real__ res = __real__ x; if ((__real__ res == 0.0L) && (__imag__ x == 0.0L)) __imag__ res = __imag__ x; } return res; }
attribute_hidden long double _Complex __multc3 (long double a, long double b, long double c, long double d) { long double ac, bd, ad, bc, x, y; ac = a * c; bd = b * d; ad = a * d; bc = b * c; x = ac - bd; y = ad + bc; if (isnan (x) && isnan (y)) { /* Recover infinities that computed as NaN + iNaN. */ bool recalc = 0; if (__isinf_nsl (a) || __isinf_nsl (b)) { /* z is infinite. "Box" the infinity and change NaNs in the other factor to 0. */ a = __copysignl (__isinf_nsl (a) ? 1 : 0, a); b = __copysignl (__isinf_nsl (b) ? 1 : 0, b); if (isnan (c)) c = __copysignl (0, c); if (isnan (d)) d = __copysignl (0, d); recalc = 1; } if (__isinf_nsl (c) || __isinf_nsl (d)) { /* w is infinite. "Box" the infinity and change NaNs in the other factor to 0. */ c = __copysignl (__isinf_nsl (c) ? 1 : 0, c); d = __copysignl (__isinf_nsl (d) ? 1 : 0, d); if (isnan (a)) a = __copysignl (0, a); if (isnan (b)) b = __copysignl (0, b); recalc = 1; } if (!recalc && (__isinf_nsl (ac) || __isinf_nsl (bd) || __isinf_nsl (ad) || __isinf_nsl (bc))) { /* Recover infinities from overflow by changing NaNs to 0. */ if (isnan (a)) a = __copysignl (0, a); if (isnan (b)) b = __copysignl (0, b); if (isnan (c)) c = __copysignl (0, c); if (isnan (d)) d = __copysignl (0, d); recalc = 1; } if (recalc) { x = INFINITY * (a * c - b * d); y = INFINITY * (a * d + b * c); } } return x + I * y; }