From: Alexandre Julliard julliard@winehq.org
--- dlls/msvcrt/math.c | 171 -------------------------------------- libs/musl/src/math/tan.c | 2 + libs/musl/src/math/tanf.c | 2 + 3 files changed, 4 insertions(+), 171 deletions(-)
diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c index 8b5f8ee3099..71d193290de 100644 --- a/dlls/msvcrt/math.c +++ b/dlls/msvcrt/math.c @@ -489,8 +489,6 @@ float CDECL atanf( float x ) return sign ? -z : z; }
-extern int __rem_pio2f(float x, double *y); - /********************************************************************* * expf (MSVCRT.@) */ @@ -813,82 +811,6 @@ float CDECL sqrtf( float x ) #endif }
-/* Copied from musl: src/math/__tandf.c */ -static float __tandf(double x, int odd) -{ - static const double T[] = { - 0x15554d3418c99f.0p-54, - 0x1112fd38999f72.0p-55, - 0x1b54c91d865afe.0p-57, - 0x191df3908c33ce.0p-58, - 0x185dadfcecf44e.0p-61, - 0x1362b9bf971bcd.0p-59, - }; - - double z, r, w, s, t, u; - - z = x * x; - r = T[4] + z * T[5]; - t = T[2] + z * T[3]; - w = z * z; - s = z * x; - u = T[0] + z * T[1]; - r = (x + s * u) + (s * w) * (t + w * r); - return odd ? -1.0 / r : r; -} - -/********************************************************************* - * tanf (MSVCRT.@) - * - * Copied from musl: src/math/tanf.c - */ -float CDECL tanf( float x ) -{ - static const double t1pio2 = 1*M_PI_2, - t2pio2 = 2*M_PI_2, - t3pio2 = 3*M_PI_2, - t4pio2 = 4*M_PI_2; - - double y; - UINT32 ix; - unsigned n, sign; - - ix = *(UINT32*)&x; - sign = ix >> 31; - ix &= 0x7fffffff; - - if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */ - if (ix < 0x39800000) { /* |x| < 2**-12 */ - /* raise inexact if x!=0 and underflow if subnormal */ - fp_barrierf(ix < 0x00800000 ? x / 0x1p120f : x + 0x1p120f); - return x; - } - return __tandf(x, 0); - } - if (ix <= 0x407b53d1) { /* |x| ~<= 5*pi/4 */ - if (ix <= 0x4016cbe3) /* |x| ~<= 3pi/4 */ - return __tandf((sign ? x + t1pio2 : x - t1pio2), 1); - else - return __tandf((sign ? x + t2pio2 : x - t2pio2), 0); - } - if (ix <= 0x40e231d5) { /* |x| ~<= 9*pi/4 */ - if (ix <= 0x40afeddf) /* |x| ~<= 7*pi/4 */ - return __tandf((sign ? x + t3pio2 : x - t3pio2), 1); - else - return __tandf((sign ? x + t4pio2 : x - t4pio2), 0); - } - - /* tan(Inf or NaN) is NaN */ - if (isinf(x)) - return math_error(_DOMAIN, "tanf", x, 0, x - x); - if (ix >= 0x7f800000) - return x - x; - - /* argument reduction */ - n = __rem_pio2f(x, &y); - return __tandf(y, n & 1); -} - /********************************************************************* * tanhf (MSVCRT.@) */ @@ -1240,8 +1162,6 @@ double CDECL rint(double x) return y; }
-extern int __rem_pio2(double x, double *y); - /* Copied from musl: src/math/exp_data.c */ static const UINT64 exp_T[] = { 0x0ULL, 0x3ff0000000000000ULL, @@ -2068,97 +1988,6 @@ double CDECL sqrt( double x ) #endif }
-/* Copied from musl: src/math/__tan.c */ -static double __tan(double x, double y, int odd) -{ - static const double T[] = { - 3.33333333333334091986e-01, - 1.33333333333201242699e-01, - 5.39682539762260521377e-02, - 2.18694882948595424599e-02, - 8.86323982359930005737e-03, - 3.59207910759131235356e-03, - 1.45620945432529025516e-03, - 5.88041240820264096874e-04, - 2.46463134818469906812e-04, - 7.81794442939557092300e-05, - 7.14072491382608190305e-05, - -1.85586374855275456654e-05, - 2.59073051863633712884e-05, - }; - static const double pio4 = 7.85398163397448278999e-01; - static const double pio4lo = 3.06161699786838301793e-17; - - double z, r, v, w, s, a, w0, a0; - UINT32 hx; - int big, sign; - - hx = *(ULONGLONG*)&x >> 32; - big = (hx & 0x7fffffff) >= 0x3FE59428; /* |x| >= 0.6744 */ - if (big) { - sign = hx >> 31; - if (sign) { - x = -x; - y = -y; - } - x = (pio4 - x) + (pio4lo - y); - y = 0.0; - } - z = x * x; - w = z * z; - r = T[1] + w * (T[3] + w * (T[5] + w * (T[7] + w * (T[9] + w * T[11])))); - v = z * (T[2] + w * (T[4] + w * (T[6] + w * (T[8] + w * (T[10] + w * T[12]))))); - s = z * x; - r = y + z * (s * (r + v) + y) + s * T[0]; - w = x + r; - if (big) { - s = 1 - 2 * odd; - v = s - 2.0 * (x + (r - w * w / (w + s))); - return sign ? -v : v; - } - if (!odd) - return w; - /* -1.0/(x+r) has up to 2ulp error, so compute it accurately */ - w0 = w; - *(LONGLONG*)&w0 = *(LONGLONG*)&w0 & 0xffffffff00000000ULL; - v = r - (w0 - x); /* w0+v = r+x */ - a0 = a = -1.0 / w; - *(LONGLONG*)&a0 = *(LONGLONG*)&a0 & 0xffffffff00000000ULL; - return a0 + a * (1.0 + a0 * w0 + a0 * v); -} - -/********************************************************************* - * tan (MSVCRT.@) - * - * Copied from musl: src/math/tan.c - */ -double CDECL tan( double x ) -{ - double y[2]; - UINT32 ix; - unsigned n; - - ix = *(ULONGLONG*)&x >> 32; - ix &= 0x7fffffff; - - if (ix <= 0x3fe921fb) { /* |x| ~< pi/4 */ - if (ix < 0x3e400000) { /* |x| < 2**-27 */ - /* raise inexact if x!=0 and underflow if subnormal */ - fp_barrier(ix < 0x00100000 ? x / 0x1p120f : x + 0x1p120f); - return x; - } - return __tan(x, 0.0, 0); - } - - if (isinf(x)) - return math_error(_DOMAIN, "tan", x, 0, x - x); - if (ix >= 0x7ff00000) - return x - x; - - n = __rem_pio2(x, y); - return __tan(y[0], y[1], n & 1); -} - /********************************************************************* * tanh (MSVCRT.@) */ diff --git a/libs/musl/src/math/tan.c b/libs/musl/src/math/tan.c index 22f06f14603..895976d8327 100644 --- a/libs/musl/src/math/tan.c +++ b/libs/musl/src/math/tan.c @@ -61,6 +61,8 @@ double __cdecl tan(double x) }
/* tan(Inf or NaN) is NaN */ + if (isinf(x)) + return math_error(_DOMAIN, "tan", x, 0, x - x); if (ix >= 0x7ff00000) return x - x;
diff --git a/libs/musl/src/math/tanf.c b/libs/musl/src/math/tanf.c index d3849734e08..99e2a5c8bac 100644 --- a/libs/musl/src/math/tanf.c +++ b/libs/musl/src/math/tanf.c @@ -55,6 +55,8 @@ float __cdecl tanf(float x) }
/* tan(Inf or NaN) is NaN */ + if (isinf(x)) + return math_error(_DOMAIN, "tanf", x, 0, x - x); if (ix >= 0x7f800000) return x - x;