diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/k_tanl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/k_tanl.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/sysdeps/ieee754/ldbl-128/k_tanl.c b/sysdeps/ieee754/ldbl-128/k_tanl.c index 6bb221e4a6..8da794d80c 100644 --- a/sysdeps/ieee754/ldbl-128/k_tanl.c +++ b/sysdeps/ieee754/ldbl-128/k_tanl.c @@ -57,36 +57,38 @@ */ #include <float.h> -#include <libc-internal.h> #include <math.h> #include <math_private.h> -static const long double - one = 1.0L, - pio4hi = 7.8539816339744830961566084581987569936977E-1L, - pio4lo = 2.1679525325309452561992610065108379921906E-35L, +#include <math-underflow.h> +#include <libc-diag.h> + +static const _Float128 + one = 1, + pio4hi = L(7.8539816339744830961566084581987569936977E-1), + pio4lo = L(2.1679525325309452561992610065108379921906E-35), /* tan x = x + x^3 / 3 + x^5 T(x^2)/U(x^2) 0 <= x <= 0.6743316650390625 Peak relative error 8.0e-36 */ - TH = 3.333333333333333333333333333333333333333E-1L, - T0 = -1.813014711743583437742363284336855889393E7L, - T1 = 1.320767960008972224312740075083259247618E6L, - T2 = -2.626775478255838182468651821863299023956E4L, - T3 = 1.764573356488504935415411383687150199315E2L, - T4 = -3.333267763822178690794678978979803526092E-1L, + TH = L(3.333333333333333333333333333333333333333E-1), + T0 = L(-1.813014711743583437742363284336855889393E7), + T1 = L(1.320767960008972224312740075083259247618E6), + T2 = L(-2.626775478255838182468651821863299023956E4), + T3 = L(1.764573356488504935415411383687150199315E2), + T4 = L(-3.333267763822178690794678978979803526092E-1), - U0 = -1.359761033807687578306772463253710042010E8L, - U1 = 6.494370630656893175666729313065113194784E7L, - U2 = -4.180787672237927475505536849168729386782E6L, - U3 = 8.031643765106170040139966622980914621521E4L, - U4 = -5.323131271912475695157127875560667378597E2L; + U0 = L(-1.359761033807687578306772463253710042010E8), + U1 = L(6.494370630656893175666729313065113194784E7), + U2 = L(-4.180787672237927475505536849168729386782E6), + U3 = L(8.031643765106170040139966622980914621521E4), + U4 = L(-5.323131271912475695157127875560667378597E2); /* 1.000000000000000000000000000000000000000E0 */ -long double -__kernel_tanl (long double x, long double y, int iy) +_Float128 +__kernel_tanl (_Float128 x, _Float128 y, int iy) { - long double z, r, v, w, s; + _Float128 z, r, v, w, s; int32_t ix, sign; ieee854_long_double_shape_type u, u1; @@ -98,7 +100,7 @@ __kernel_tanl (long double x, long double y, int iy) { /* generate inexact */ if ((ix | u.parts32.w1 | u.parts32.w2 | u.parts32.w3 | (iy + 1)) == 0) - return one / fabs (x); + return one / fabsl (x); else if (iy == 1) { math_check_force_underflow (x); @@ -134,7 +136,7 @@ __kernel_tanl (long double x, long double y, int iy) w = x + r; if (ix >= 0x3ffe5942) { - v = (long double) iy; + v = (_Float128) iy; w = (v - 2.0 * (x - (w * w / (w + v) - r))); /* SIGN is set for arguments that reach this code, but not otherwise, resulting in warnings that it may be used |