From e56bea0cf9781330c3aa2cee80ed8be2e0ebdb7a Mon Sep 17 00:00:00 2001
From: Jutho Haegeman <jutho.haegeman@ugent.be>
Date: Fri, 6 Oct 2017 23:27:58 +0200
Subject: [PATCH] fix bug in delta

---
 src/WignerSymbols.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/WignerSymbols.jl b/src/WignerSymbols.jl
index 4af6bc6..397c4c6 100644
--- a/src/WignerSymbols.jl
+++ b/src/WignerSymbols.jl
@@ -1,3 +1,4 @@
+__precompile__(false)
 module WignerSymbols
 export δ, Δ, clebschgordan, wigner3j, wigner6j, racahV, racahW
 
@@ -19,6 +20,7 @@ function δ(j₁, j₂, j₃)
     j₃ <= j₁ + j₂ || return false
     j₁ <= j₂ + j₃ || return false
     j₂ <= j₃ + j₁ || return false
+    isinteger(j₁+j₂+j₃) || return false
     return true
 end