Add IterativeEigensolvers

Author: ararslan

README.md

@@ -101,6 +101,9 @@ Currently, the `@compat` macro supports the following syntaxes:
 * `using Compat.Printf` is provided on versions older than 0.7, where this library is not
   yet a part of the standard library. ([#25056])
 
+* `using Compat.IterativeEigensolvers` is provided on versions older than 0.7, where this
+  library is not yet a part of the standard library. ([#24714])
+
 ## New functions, macros, and methods
 
 * `@views` takes an expression and converts all slices to views ([#20164]), while
@@ -396,6 +399,7 @@ includes this fix. Find the minimum version from there.
 [#24647]: https://github.com/JuliaLang/julia/issues/24647
 [#24652]: https://github.com/JuliaLang/julia/issues/24652
 [#24657]: https://github.com/JuliaLang/julia/issues/24657
+[#24714]: https://github.com/JuliaLang/julia/issues/24714
 [#24785]: https://github.com/JuliaLang/julia/issues/24785
 [#25012]: https://github.com/JuliaLang/julia/issues/25012
 [#25021]: https://github.com/JuliaLang/julia/issues/25021

src/Compat.jl

@@ -769,6 +769,18 @@ else
     import Printf
 end
 
+if VERSION < v"0.7.0-DEV.2655"
+    @eval module IterativeEigensolvers
+        using Base: eigs, svds
+        export eigs, svds
+    end
+elseif VERSION < v"0.7.0-DEV.3019"
+    import IterativeEigenSolvers
+    const IterativeEigensolvers = IterativeEigenSolvers
+else
+    import IterativeEigensolvers
+end
+
 # 0.7.0-DEV.1993
 @static if !isdefined(Base, :EqualTo)
     if VERSION >= v"0.6.0"

test/runtests.jl

@@ -912,6 +912,16 @@ module Test25056
     @test isdefined(@__MODULE__, Symbol("@sprintf"))
 end
 
+# 0.7
+module Test24714
+    using Compat
+    using Compat.Test
+    using Compat.IterativeEigensolvers
+    @test isdefined(@__MODULE__, :IterativeEigensolvers)
+    @test isdefined(@__MODULE__, :eigs)
+    @test isdefined(@__MODULE__, :svds)
+end
+
 let a = [0,1,2,3,0,1,2,3]
     @test findfirst(equalto(3), [1,2,4,1,2,3,4]) == 6
     @test findfirst(!equalto(1), [1,2,4,1,2,3,4]) == 2