Alexandre Julliard : ntdll: Copy fabs() implementation from msvcrt.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9eb3adbc851733352aa4b7edb401f012290e61b6
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=9eb3adbc851733352aa4b7edb...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Tue Oct 26 10:33:47 2021 +0200

ntdll: Copy fabs() implementation from msvcrt.

Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ntdll/math.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/math.c b/dlls/ntdll/math.c
index a7d20acdf59..7202897ce1b 100644
--- a/dlls/ntdll/math.c
+++ b/dlls/ntdll/math.c
@@ -183,10 +183,14 @@ double CDECL cos( double d )
 
 /*********************************************************************
  *                  fabs   (NTDLL.@)
+ *
+ * Copied from musl: src/math/fabsf.c
  */
-double CDECL fabs( double d )
+double CDECL fabs( double x )
 {
-    return unix_funcs->fabs( d );
+    union { double f; UINT64 i; } u = { x };
+    u.i &= ~0ull >> 1;
+    return u.f;
 }
 
 /*********************************************************************