Piotr Caban : msvcrt: Import lroundf implementation from musl.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7fa8b03cd3ff16664bd3bfb3286dff1346e5dc08
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=7fa8b03cd3ff16664bd3bfb3286dff1346e5dc08

Author: Piotr Caban <piotr at codeweavers.com>
Date:   Thu Apr 29 17:06:35 2021 +0200

msvcrt: Import lroundf 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    |  9 ++++++++-
 dlls/msvcrt/unixlib.c | 13 -------------
 dlls/msvcrt/unixlib.h |  1 -
 include/config.h.in   |  3 ---
 6 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/configure b/configure
index 690f9333f14..794a3e09c29 100755
--- a/configure
+++ b/configure
@@ -19642,7 +19642,6 @@ for ac_func in \
 	lrint \
 	lrintf \
 	lround \
-	lroundf \
 	nearbyint \
 	nearbyintf \
 	nexttoward \
diff --git a/configure.ac b/configure.ac
index b0977c112b4..3bfa2885002 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2685,7 +2685,6 @@ AC_CHECK_FUNCS(\
 	lrint \
 	lrintf \
 	lround \
-	lroundf \
 	nearbyint \
 	nearbyintf \
 	nexttoward \
diff --git a/dlls/msvcrt/math.c b/dlls/msvcrt/math.c
index c8dd53cf095..e1251ba7115 100644
--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -4368,10 +4368,17 @@ __msvcrt_long CDECL lround(double x)
 
 /*********************************************************************
  *      lroundf (MSVCR120.@)
+ *
+ * Copied from musl: src/math/lroundf.c
  */
 __msvcrt_long CDECL lroundf(float x)
 {
-    return unix_funcs->lroundf( x );
+    float f = roundf(x);
+    if (f != (float)(__msvcrt_long)f) {
+        *_errno() = EDOM;
+        return 0;
+    }
+    return f;
 }
 
 /*********************************************************************
diff --git a/dlls/msvcrt/unixlib.c b/dlls/msvcrt/unixlib.c
index e3ddd486e93..3bf99c09c24 100644
--- a/dlls/msvcrt/unixlib.c
+++ b/dlls/msvcrt/unixlib.c
@@ -777,18 +777,6 @@ static int CDECL unix_lround(double x)
 #endif
 }
 
-/*********************************************************************
- *      lroundf
- */
-static int CDECL unix_lroundf(float x)
-{
-#ifdef HAVE_LROUNDF
-    return lroundf(x);
-#else
-    return unix_lround(x);
-#endif
-}
-
 /*********************************************************************
  *      sin
  */
@@ -957,7 +945,6 @@ static const struct unix_funcs funcs =
     unix_lrint,
     unix_lrintf,
     unix_lround,
-    unix_lroundf,
     unix_modf,
     unix_modff,
     unix_nearbyint,
diff --git a/dlls/msvcrt/unixlib.h b/dlls/msvcrt/unixlib.h
index 49ec319d219..c74115bc76c 100644
--- a/dlls/msvcrt/unixlib.h
+++ b/dlls/msvcrt/unixlib.h
@@ -75,7 +75,6 @@ struct unix_funcs
     int             (CDECL *lrint)(double x);
     int             (CDECL *lrintf)(float x);
     int             (CDECL *lround)(double x);
-    int             (CDECL *lroundf)(float x);
     double          (CDECL *modf)(double x, double *iptr);
     float           (CDECL *modff)(float x, float *iptr);
     double          (CDECL *nearbyint)(double num);
diff --git a/include/config.h.in b/include/config.h.in
index 71f9f4350b0..544fe85b248 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -480,9 +480,6 @@
 /* Define to 1 if you have the `lround' function. */
 #undef HAVE_LROUND
 
-/* Define to 1 if you have the `lroundf' function. */
-#undef HAVE_LROUNDF
-
 /* Define to 1 if you have the `lstat' function. */
 #undef HAVE_LSTAT