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msvcrt: Import atanf implementation from musl. 

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2021-05-25 15:21:18 +02:00 committed by Alexandre Julliard
parent da55a453d1
commit ed49a95d1e
6 changed files with 22 additions and 25 deletions
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1
configure vendored
View File

@ -19617,7 +19617,6 @@ fi
for ac_func in \
atanh \
atanhf \
exp2 \
exp2f \
expm1 \

1
configure.ac
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@ -2657,7 +2657,6 @@ fi
AC_CHECK_FUNCS(\
atanh \
atanhf \
exp2 \
exp2f \
expm1 \

28
dlls/msvcrt/math.c
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@ -6687,21 +6687,37 @@ double CDECL atanh(double x)
/*********************************************************************
* atanhf (MSVCR120.@)
*
* Copied from musl: src/math/atanhf.c
*/
float CDECL atanhf(float x)
{
float ret;
UINT32 ux = *(UINT32*)&x;
int s = ux >> 31;
if (x > 1 || x < -1) {
/* |x| */
ux &= 0x7fffffff;
x = *(float*)&ux;
if (x > 1) {
*_errno() = EDOM;
feraiseexcept(FE_INVALID);
return NAN;
}
ret = unix_funcs->atanh( x );
if (!isfinite(ret)) *_errno() = ERANGE;
return ret;
if (ux < 0x3f800000 - (1 << 23)) {
if (ux < 0x3f800000 - (32 << 23)) {
fp_barrierf(x + 0x1p120f);
if (ux < (1 << 23)) /* handle underflow */
fp_barrierf(x * x);
} else { /* |x| < 0.5, up to 1.7ulp error */
x = 0.5f * log1pf(2 * x + 2 * x * x / (1 - x));
}
} else { /* avoid overflow */
x = 0.5f * log1pf(2 * (x / (1 - x)));
if (isinf(x)) *_errno() = ERANGE;
}
return s ? -x : x;
}
#endif /* _MSVCR_VER>=120 */

13
dlls/msvcrt/unixlib.c
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@ -55,18 +55,6 @@ static double CDECL unix_atanh(double x)
#endif
}
/*********************************************************************
* atanhf
*/
static float CDECL unix_atanhf(float x)
{
#ifdef HAVE_ATANHF
return atanhf(x);
#else
return unix_atanh(x);
#endif
}
/*********************************************************************
* cosh
*/
@ -394,7 +382,6 @@ static float CDECL unix_tgammaf(float x)
static const struct unix_funcs funcs =
{
unix_atanh,
unix_atanhf,
unix_cosh,
unix_coshf,
unix_exp,

1
dlls/msvcrt/unixlib.h
View File

@ -24,7 +24,6 @@
struct unix_funcs
{
double (CDECL *atanh)(double x);
float (CDECL *atanhf)(float x);
double (CDECL *cosh)(double x);
float (CDECL *coshf)(float x);
double (CDECL *exp)(double x);

3
include/config.h.in
View File

@ -34,9 +34,6 @@
/* Define to 1 if you have the `atanh' function. */
#undef HAVE_ATANH
/* Define to 1 if you have the `atanhf' function. */
#undef HAVE_ATANHF
/* Define to 1 if you have the <AudioToolbox/AudioConverter.h> header file. */
#undef HAVE_AUDIOTOOLBOX_AUDIOCONVERTER_H