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msvcrt: Import asinh implementation from musl.
Signed-off-by: Piotr Caban <piotr@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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17174db64a
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configure
vendored
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configure
vendored
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@ -19616,7 +19616,6 @@ $as_echo "#define HAVE_ISNAN 1" >>confdefs.h
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fi
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fi
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for ac_func in \
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for ac_func in \
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asinh \
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atanh \
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atanh \
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atanhf \
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atanhf \
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exp2 \
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exp2 \
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@ -2656,7 +2656,6 @@ then
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fi
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fi
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AC_CHECK_FUNCS(\
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AC_CHECK_FUNCS(\
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asinh \
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atanh \
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atanh \
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atanhf \
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atanhf \
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exp2 \
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exp2 \
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@ -6569,10 +6569,28 @@ double CDECL fmin(double x, double y)
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/*********************************************************************
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/*********************************************************************
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* asinh (MSVCR120.@)
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* asinh (MSVCR120.@)
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*
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* Copied from musl: src/math/asinh.c
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*/
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*/
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double CDECL asinh(double x)
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double CDECL asinh(double x)
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{
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{
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return unix_funcs->asinh( x );
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UINT64 ux = *(UINT64*)&x;
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int e = ux >> 52 & 0x7ff;
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int s = ux >> 63;
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/* |x| */
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ux &= (UINT64)-1 / 2;
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x = *(double*)&ux;
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if (e >= 0x3ff + 26) /* |x| >= 0x1p26 or inf or nan */
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x = log(x) + 0.693147180559945309417232121458176568;
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else if (e >= 0x3ff + 1) /* |x| >= 2 */
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x = log(2 * x + 1 / (sqrt(x * x + 1) + x));
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else if (e >= 0x3ff - 26) /* |x| >= 0x1p-26 */
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x = log1p(x + x * x / (sqrt(x * x + 1) + 1));
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else /* |x| < 0x1p-26, raise inexact if x != 0 */
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fp_barrier(x + 0x1p120f);
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return s ? -x : x;
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}
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}
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/*********************************************************************
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/*********************************************************************
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@ -42,23 +42,6 @@
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
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/*********************************************************************
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* asinh
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*/
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static double CDECL unix_asinh(double x)
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{
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#ifdef HAVE_ASINH
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return asinh(x);
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#else
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if (!isfinite(x*x+1))
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{
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if (x > 0) return log(2) + log(x);
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else return -log(2) - log(-x);
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}
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return log(x + sqrt(x*x+1));
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#endif
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}
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/*********************************************************************
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/*********************************************************************
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* atanh
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* atanh
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*/
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*/
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@ -410,7 +393,6 @@ static float CDECL unix_tgammaf(float x)
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static const struct unix_funcs funcs =
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static const struct unix_funcs funcs =
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{
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{
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unix_asinh,
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unix_atanh,
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unix_atanh,
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unix_atanhf,
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unix_atanhf,
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unix_cosh,
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unix_cosh,
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@ -23,7 +23,6 @@
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struct unix_funcs
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struct unix_funcs
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{
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{
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double (CDECL *asinh)(double x);
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double (CDECL *atanh)(double x);
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double (CDECL *atanh)(double x);
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float (CDECL *atanhf)(float x);
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float (CDECL *atanhf)(float x);
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double (CDECL *cosh)(double x);
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double (CDECL *cosh)(double x);
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@ -25,9 +25,6 @@
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/* Define to 1 if you have the <arpa/nameser.h> header file. */
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/* Define to 1 if you have the <arpa/nameser.h> header file. */
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#undef HAVE_ARPA_NAMESER_H
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#undef HAVE_ARPA_NAMESER_H
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/* Define to 1 if you have the `asinh' function. */
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#undef HAVE_ASINH
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/* Define to 1 if you have the <asm/types.h> header file. */
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/* Define to 1 if you have the <asm/types.h> header file. */
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#undef HAVE_ASM_TYPES_H
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#undef HAVE_ASM_TYPES_H
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