From efabbd365e4b46337135240f18ad96fd6d78c921 Mon Sep 17 00:00:00 2001
From: Ilya Yaroshenko <ilyayaroshenko@gmail.com>
Date: Fri, 20 Feb 2015 12:42:10 +0300
Subject: [PATCH] =?UTF-8?q?std.math=20=E2=84=963:=20conj=20for=20double=20?=
 =?UTF-8?q?and=20float?=
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Issue 14206 workaround
---
 std/math.d | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/std/math.d b/std/math.d
index f37ae3abd81..e72504fad05 100644
--- a/std/math.d
+++ b/std/math.d
@@ -533,13 +533,22 @@ real abs(Num)(Num y) @safe pure nothrow @nogc
  * Note that z * conj(z) = $(POWER z.re, 2) - $(POWER z.im, 2)
  * is always a real number
  */
-creal conj(creal z) @safe pure nothrow @nogc
+auto conj(Num)(Num z) @safe pure nothrow @nogc
+    if (is(Num* : const(cfloat*)) || is(Num* : const(cdouble*))
+            || is(Num* : const(creal*)))
 {
-    return z.re - z.im*1i;
+    //FIXME
+    //Issue 14206
+    static if(is(Num* : const(cdouble*)))
+        return cast(cdouble) conj(cast(creal)z);
+    else
+        return z.re - z.im*1fi;
 }
 
 /** ditto */
-ireal conj(ireal y) @safe pure nothrow @nogc
+auto conj(Num)(Num y) @safe pure nothrow @nogc
+    if (is(Num* : const(ifloat*)) || is(Num* : const(idouble*))
+            || is(Num* : const(ireal*)))
 {
     return -y;
 }
@@ -547,10 +556,27 @@ ireal conj(ireal y) @safe pure nothrow @nogc
 ///
 @safe pure nothrow @nogc unittest
 {
-    assert(conj(7 + 3i) == 7-3i);
+    creal c = 7 + 3Li;
+    assert(conj(c) == 7-3Li);
     ireal z = -3.2Li;
     assert(conj(z) == -z);
 }
+//Issue 14206
+@safe pure nothrow @nogc unittest
+{
+    cdouble c = 7 + 3i;
+    assert(conj(c) == 7-3i);
+    idouble z = -3.2i;
+    assert(conj(z) == -z);
+}
+//Issue 14206
+@safe pure nothrow @nogc unittest
+{
+    cfloat c = 7f + 3fi;
+    assert(conj(c) == 7f-3fi);
+    ifloat z = -3.2fi;
+    assert(conj(z) == -z);
+}
 
 /***********************************
  * Returns cosine of x. x is in radians.