add scalar in-place mul!

2017-08-04 18:25:44 +02:00 · 2017-08-04 18:25:44 +02:00 · 7bbfe4408c
parent 50629a762c
commit 7bbfe4408c
1 changed files with 5 additions and 0 deletions
--- a/src/GroupRings.jl
+++ b/src/GroupRings.jl
@ -271,6 +271,11 @@ end

 (-)(X::GroupRingElem) = GroupRingElem(-X.coeffs, parent(X))

+function mul!{T<:Number}(a::T, X::GroupRingElem{T})
+   X.coeffs .*= a
+   return X
+end
+
 mul{T<:Number}(a::T, X::GroupRingElem{T}) = GroupRingElem(a*X.coeffs, parent(X))

 function mul{T<:Number, S<:Number}(a::T, X::GroupRingElem{S})