Remove dot operators

Author: abelsiqueira

src/LinearOperators.jl

@@ -365,13 +365,8 @@ end
 +(op :: AbstractLinearOperator, M :: AbstractMatrix) = op + LinearOperator(M)
 
 # Operator .+ scalar.
-@static if VERSION < v"0.6.0-"
-  .+(op :: AbstractLinearOperator, x :: Number) = op + x * opOnes(op.nrow, op.ncol)
-  .+(x :: Number, op :: AbstractLinearOperator) = x * opOnes(op.nrow, op.ncol) + op
-else
-  +(op :: AbstractLinearOperator, x :: Number) = op + x * opOnes(op.nrow, op.ncol)
-  +(x :: Number, op :: AbstractLinearOperator) = x * opOnes(op.nrow, op.ncol) + op
-end
++(op :: AbstractLinearOperator, x :: Number) = op + x * opOnes(op.nrow, op.ncol)
++(x :: Number, op :: AbstractLinearOperator) = x * opOnes(op.nrow, op.ncol) + op
 
 # Operator - operator
 -(op1 :: AbstractLinearOperator, op2 :: AbstractLinearOperator) = op1 + (-op2)
@@ -381,13 +376,8 @@ end
 -(op :: AbstractLinearOperator, M :: AbstractMatrix) = op - LinearOperator(M)
 
 # Operator - scalar.
-@static if VERSION < v"0.6.0-"
-  .-(op :: AbstractLinearOperator, x :: Number) = op .+ (-x)
-  .-(x :: Number, op :: AbstractLinearOperator) = x .+ (-op)
-else
-  -(op :: AbstractLinearOperator, x :: Number) = op + (-x)
-  -(x :: Number, op :: AbstractLinearOperator) = x + (-op)
-end
+-(op :: AbstractLinearOperator, x :: Number) = op + (-x)
+-(x :: Number, op :: AbstractLinearOperator) = x + (-op)
 
 
 # Utility functions.

test/test_linop.jl

@@ -87,16 +87,16 @@ function test_linop()
 
     B2 = rand(ncol, ncol+1) + rand(ncol, ncol+1) * im;
     @testset "Operator ± scalar" begin
-      opC = LinearOperator(A1) .+ 2.12345;
+      opC = LinearOperator(A1) + 2.12345;
       @test(vecnorm(A1 .+ 2.12345 - full(opC)) <= rtol * vecnorm(A1 .+ 2.12345));
 
-      opC = 2.12345 .+ LinearOperator(A1);
+      opC = 2.12345 + LinearOperator(A1);
       @test(vecnorm(A1 .+ 2.12345 - full(opC)) <= rtol * vecnorm(A1 .+ 2.12345));
 
-      opC = LinearOperator(A1) .- 2.12345;
+      opC = LinearOperator(A1) - 2.12345;
       @test(vecnorm((A1 .- 2.12345) - full(opC)) <= rtol * vecnorm(A1 .- 2.12345));
 
-      opC = 2.12345 .- LinearOperator(A1);
+      opC = 2.12345 - LinearOperator(A1);
       @test(vecnorm((2.12345 .- A1) - full(opC)) <= rtol * vecnorm(2.12345 .- A1));
 
       C = A1 * B2;
@@ -126,17 +126,11 @@ function test_linop()
     @testset "Scalar × operator" begin
       opC = 2.12345 * LinearOperator(A1);
       @test(vecnorm(AA1 - full(opC)) <= rtol * vecnorm(AA1));
-
-      opC = 2.12345 .* LinearOperator(A1);
-      @test(vecnorm(AA1 - full(opC)) <= rtol * vecnorm(AA1));
     end
 
     @testset "Operator × scalar" begin
       opC = LinearOperator(A1) * 2.12345;
       @test(vecnorm(AA1 - full(opC)) <= rtol * vecnorm(AA1));
-
-      opC = LinearOperator(A1) .* 2.12345;
-      @test(vecnorm(AA1 - full(opC)) <= rtol * vecnorm(AA1));
     end
   end