diff --git a/std/datetime.d b/std/datetime.d
index 1ca71f59b..a8fab52cc 100644
--- a/std/datetime.d
+++ b/std/datetime.d
@@ -21152,7 +21152,7 @@ unittest
         //Verify Examples.
         {
             auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
-            auto func = (in Date date)
+            auto func = delegate (in Date date)
                         {
                             if((date.day & 1) == 0)
                                 return date + dur!"days"(2);
@@ -21221,7 +21221,7 @@ unittest
         //Verify Examples.
         {
             auto interval = Interval!Date(Date(2010, 9, 1), Date(2010, 9, 9));
-            auto func = (in Date date)
+            auto func = delegate (in Date date)
                         {
                             if((date.day & 1) == 0)
                                 return date - dur!"days"(2);
@@ -23468,7 +23468,7 @@ unittest
 
         //Verify Examples.
         auto interval = PosInfInterval!Date(Date(2010, 9, 1));
-        auto func = (in Date date)
+        auto func = delegate (in Date date)
                     {
                         if((date.day & 1) == 0)
                             return date + dur!"days"(2);
@@ -25737,7 +25737,7 @@ unittest
 
         //Verify Examples.
         auto interval = NegInfInterval!Date(Date(2010, 9, 9));
-        auto func = (in Date date)
+        auto func = delegate (in Date date)
                     {
                         if((date.day & 1) == 0)
                             return date - dur!"days"(2);
diff --git a/std/exception.d b/std/exception.d
index cdf7faf7a..50d17532a 100644
--- a/std/exception.d
+++ b/std/exception.d
@@ -365,8 +365,9 @@ T enforce(T, string file = __FILE__, size_t line = __LINE__)
 
     The whole safety and purity are inferred from $(D Dg)'s safety and purity.
  +/
-T enforce(T, Dg : void delegate(), string file = __FILE__, size_t line = __LINE__)
+T enforce(T, Dg, string file = __FILE__, size_t line = __LINE__)
     (T value, scope Dg dg)
+    if (is(Dg : void delegate()) || is(Dg : void function()))
 {
     if (!value) dg();
     return value;
diff --git a/std/traits.d b/std/traits.d
index b32dcea0a..b766fc750 100644
--- a/std/traits.d
+++ b/std/traits.d
@@ -3012,7 +3012,7 @@ unittest
     static assert(! isFunctionPointer!(foo));
     static assert(! isFunctionPointer!(bar));
 
-    static assert(!isFunctionPointer!((int a) {}));
+    static assert(isFunctionPointer!((int a) {}));
 }
 
 /**