From 1798119abff6b7226ad65ce57339a26f0ab0bf4e Mon Sep 17 00:00:00 2001
From: look-at-me <42397654+look-at-me@users.noreply.github.com>
Date: Tue, 14 Aug 2018 23:21:00 -0400
Subject: [PATCH] Fix issue 19162

---
 std/math.d | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/std/math.d b/std/math.d
index edbd7e6ae1a..7b2ba3e47b1 100644
--- a/std/math.d
+++ b/std/math.d
@@ -627,10 +627,9 @@ template isDeprecatedComplex(T)
  *     the return type will be the same as the input;
  */
 auto abs(Num)(Num x)
-// workaround for https://issues.dlang.org/show_bug.cgi?id=18251
-//if (!isDeprecatedComplex!Num &&
-    //(is(typeof(Num.init >= 0)) && is(typeof(-Num.init)) ||
-    //(is(Unqual!Num == short) || is(Unqual!Num == byte))))
+if (!isDeprecatedComplex!Num &&
+    (is(typeof(Num.init >= 0)) && is(typeof(-Num.init)) ||
+    (is(Unqual!Num == short) || is(Unqual!Num == byte))))
 {
     static if (isFloatingPoint!(Num))
         return fabs(x);