From ca3ec95ea2ea33c8b5159a56fb026cb576e87e10 Mon Sep 17 00:00:00 2001
From: kalmar <kalmar@amu.edu.pl>
Date: Thu, 18 May 2017 17:58:13 +0200
Subject: [PATCH] rationalize for Integral Group Rings

---
 src/GroupRings.jl | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/GroupRings.jl b/src/GroupRings.jl
index 1d10354..ddf2d8d 100644
--- a/src/GroupRings.jl
+++ b/src/GroupRings.jl
@@ -349,6 +349,10 @@ norm(X::GroupRingElem, p=2) = norm(X.coeffs, p)
 
 augmentation(X::GroupRingElem) = sum(X.coeffs)
 
+function rationalize{T<:Integer, S<:Integer}(::Type{T}, X::GroupRingElem{S})
+   return convert(Rational{T}, X)
+end
+
 function rationalize{T<:Integer, S<:Number}(::Type{T}, X::GroupRingElem{S};
    tol=eps(S))
    v = rationalize(T, X.coeffs, tol=tol)