msvcrt: Fix acosf implementation when returning Pi or Pi/2.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49718 Signed-off-by: Piotr Caban <piotr@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -259,7 +259,7 @@ float CDECL MSVCRT_acosf( float x )
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if (ix >= 0x3f800000) {
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if (ix == 0x3f800000) {
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if (hx >> 31)
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return 2 * pio2_hi + 7.5231638453e-37;
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return 2 * pio2_lo + 2 * pio2_hi + 7.5231638453e-37;
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return 0;
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}
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if (MSVCRT__isnanf(x)) return x;
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@ -268,7 +268,7 @@ float CDECL MSVCRT_acosf( float x )
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/* |x| < 0.5 */
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if (ix < 0x3f000000) {
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if (ix <= 0x32800000) /* |x| < 2**-26 */
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return pio2_hi + 7.5231638453e-37;
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return pio2_lo + pio2_hi + 7.5231638453e-37;
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return pio2_hi - (x - (pio2_lo - x * acosf_R(x * x)));
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}
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/* x < -0.5 */
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