Piotr Caban : msvcrt: Import rintf implementation from musl.
Alexandre Julliard
julliard at winehq.org
Mon May 10 15:44:05 CDT 2021
Module: wine
Branch: master
Commit: ad2ecc6e06c4204a5b9eb68fa464e01dd30aa4d7
URL: https://source.winehq.org/git/wine.git/?a=commit;h=ad2ecc6e06c4204a5b9eb68fa464e01dd30aa4d7
Author: Piotr Caban <piotr at codeweavers.com>
Date: Mon May 10 20:11:40 2021 +0200
msvcrt: Import rintf implementation from musl.
Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
configure | 1 -
configure.ac | 1 -
dlls/msvcrt/math.c | 19 ++++++++++++++++++-
dlls/msvcrt/unixlib.c | 13 -------------
dlls/msvcrt/unixlib.h | 1 -
include/config.h.in | 3 ---
6 files changed, 18 insertions(+), 20 deletions(-)
diff --git a/configure b/configure
index 59248c28c99..25161a1f27a 100755
--- a/configure
+++ b/configure
@@ -19652,7 +19652,6 @@ for ac_func in \
remainderf \
remquo \
remquof \
- rintf \
tgamma \
tgammaf \
trunc \
diff --git a/configure.ac b/configure.ac
index 0c1ea608d7e..46d6f17fe73 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2692,7 +2692,6 @@ AC_CHECK_FUNCS(\
remainderf \
remquo \
remquof \
- rintf \
tgamma \
tgammaf \
trunc \
diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c
index c1702c5b810..1e67aa03964 100644
--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -4312,10 +4312,27 @@ double CDECL rint(double x)
/*********************************************************************
* rintf (MSVCR120.@)
+ *
+ * Copied from musl: src/math/rintf.c
*/
float CDECL rintf(float x)
{
- return unix_funcs->rintf(x);
+ static const float toint = 1 / FLT_EPSILON;
+
+ unsigned int ix = *(unsigned int*)&x;
+ int e = ix >> 23 & 0xff;
+ int s = ix >> 31;
+ float y;
+
+ if (e >= 0x7f + 23)
+ return x;
+ if (s)
+ y = fp_barrierf(x - toint) + toint;
+ else
+ y = fp_barrierf(x + toint) - toint;
+ if (y == 0)
+ return s ? -0.0f : 0.0f;
+ return y;
}
/*********************************************************************
diff --git a/dlls/msvcrt/unixlib.c b/dlls/msvcrt/unixlib.c
index f72fd0cc161..e36c2e047b9 100644
--- a/dlls/msvcrt/unixlib.c
+++ b/dlls/msvcrt/unixlib.c
@@ -729,18 +729,6 @@ static float CDECL unix_remquof(float x, float y, int *quo)
#endif
}
-/*********************************************************************
- * rintf
- */
-static float CDECL unix_rintf(float x)
-{
-#ifdef HAVE_RINTF
- return rintf(x);
-#else
- return x >= 0 ? floorf(x + 0.5) : ceilf(x - 0.5);
-#endif
-}
-
/*********************************************************************
* sin
*/
@@ -922,7 +910,6 @@ static const struct unix_funcs funcs =
unix_remainderf,
unix_remquo,
unix_remquof,
- unix_rintf,
unix_sin,
unix_sinf,
unix_sinh,
diff --git a/dlls/msvcrt/unixlib.h b/dlls/msvcrt/unixlib.h
index f5245cfb645..74545507b26 100644
--- a/dlls/msvcrt/unixlib.h
+++ b/dlls/msvcrt/unixlib.h
@@ -88,7 +88,6 @@ struct unix_funcs
float (CDECL *remainderf)(float x, float y);
double (CDECL *remquo)(double x, double y, int *quo);
float (CDECL *remquof)(float x, float y, int *quo);
- float (CDECL *rintf)(float x);
double (CDECL *sin)(double x);
float (CDECL *sinf)(float x);
double (CDECL *sinh)(double x);
diff --git a/include/config.h.in b/include/config.h.in
index 181cbc3d5aa..ee34d528122 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -684,9 +684,6 @@
/* Define to 1 if you have the `res_getservers' function. */
#undef HAVE_RES_GETSERVERS
-/* Define to 1 if you have the `rintf' function. */
-#undef HAVE_RINTF
-
/* Define to 1 if you have the <sasl/sasl.h> header file. */
#undef HAVE_SASL_SASL_H
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