msvcrt: Reimplement _chgsign().
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -170,8 +170,9 @@ int CDECL MSVCRT__set_FMA3_enable(int flag)
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*/
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float CDECL MSVCRT__chgsignf( float num )
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{
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/* FIXME: +-infinity,Nan not tested */
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return -num;
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union { float f; UINT32 i; } u = { num };
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u.i ^= 0x80000000;
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return u.f;
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}
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/*********************************************************************
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@ -1786,8 +1787,9 @@ double CDECL MSVCRT__cabs(struct MSVCRT__complex num)
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*/
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double CDECL MSVCRT__chgsign(double num)
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{
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/* FIXME: +-infinity,Nan not tested */
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return -num;
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union { double f; UINT64 i; } u = { num };
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u.i ^= 1ull << 63;
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return u.f;
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}
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/*********************************************************************
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