ntdll: Copy fabs() implementation from msvcrt.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ntdll: Copy fabs() implementation from msvcrt.
9eb3adbc · Alexandre Julliard · f0d3a7d3 · 9eb3adbc
Commit 9eb3adbc authored Oct 26, 2021 by Alexandre Julliard
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Showing with 6 additions and 2 deletions

math.c dlls/ntdll/math.c +6 -2

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--- 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;
 }

 /*********************************************************************