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msvcrt: Match native sinf results in -Pi/4 - Pi/4 range.

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Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2021-06-21 16:37:36 +02:00 committed by Alexandre Julliard
parent 0acd98f135
commit ee7b5ebc3a
1 changed files with 7 additions and 4 deletions
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11
dlls/msvcrt/math.c
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@ -660,14 +660,17 @@ static float __expm1f(float x)
/* Copied from musl: src/math/__sindf.c */
static float __sindf(double x)
{
static const double S1 = -0x15555554cbac77.0p-55,
S2 = 0x111110896efbb2.0p-59,
S3 = -0x1a00f9e2cae774.0p-65,
S4 = 0x16cd878c3b46a7.0p-71;
static const double S1 = -0x1.5555555555555p-3,
S2 = 0x1.1111111111111p-7,
S3 = -0x1.a01a01a01a01ap-13,
S4 = 0x1.71de3a556c734p-19;
double r, s, w, z;
z = x * x;
if (x > -7.8175831586122513e-03 && x < 7.8175831586122513e-03)
return x * (1 + S1 * z);
w = z * z;
r = S3 + z * S4;
s = z * x;