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msvcrt: Use __scalbn helper in ldexp implementation. 

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2021-06-02 17:53:29 +02:00 committed by Alexandre Julliard
parent 135ae49ff4
commit 85da8da3d3
3 changed files with 1 additions and 13 deletions
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4
dlls/msvcrt/math.c
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@ -3472,14 +3472,12 @@ int * CDECL __fpecode(void)
*/
double CDECL ldexp(double num, int exp)
{
double z = unix_funcs->ldexp(num,exp);
double z = __scalbn(num, exp);
if (isfinite(num) && !isfinite(z))
return math_error(_OVERFLOW, "ldexp", num, exp, z);
if (num && isfinite(num) && !z)
return math_error(_UNDERFLOW, "ldexp", num, exp, z);
if (z == 0 && signbit(z))
z = 0.0; /* Convert -0 -> +0 */
return z;
}

9
dlls/msvcrt/unixlib.c
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@ -138,14 +138,6 @@ static float CDECL unix_hypotf(float x, float y)
return hypotf( x, y );
}
/*********************************************************************
* ldexp
*/
static double CDECL unix_ldexp(double num, int exp)
{
return ldexp( num, exp );
}
/*********************************************************************
* lgamma
*/
@ -306,7 +298,6 @@ static const struct unix_funcs funcs =
unix_frexpf,
unix_hypot,
unix_hypotf,
unix_ldexp,
unix_lgamma,
unix_lgammaf,
unix_log,

1
dlls/msvcrt/unixlib.h
View File

@ -33,7 +33,6 @@ struct unix_funcs
float (CDECL *frexpf)(float x, int *exp);
double (CDECL *hypot)(double x, double y);
float (CDECL *hypotf)(float x, float y);
double (CDECL *ldexp)(double x, int exp);
double (CDECL *lgamma)(double x);
float (CDECL *lgammaf)(float x);
double (CDECL *log)(double x);