Added jagged_array(a) conversion function.

Author: fverdugo

src/jagged_array.jl

@@ -195,4 +195,22 @@ The returned object stores references to the given inputs.
 jagged_array(data,ptrs) = GenericJaggedArray(data,ptrs)
 jagged_array(data::Vector,ptrs::Vector) = JaggedArray(data,ptrs)
 
+"""
+    jagged_array(a)
+
+Create a `JaggedArray` or a `GenericJaggedArray` from a given vector of vectors `a`.
+Return `a` if it is already a `JaggedArray` or a `GenericJaggedArray`.
+"""
+function jagged_array(a)
+    JaggedArray(a)
+end
+function jagged_array(a::GenericJaggedArray)
+    a
+end
+
+
+
+
+
+
 

test/jagged_array_tests.jl

@@ -7,6 +7,8 @@ a = [[1,2],[3,4,5],Int[],[3,4]]
 b = JaggedArray(a)
 @test a == b
 @test b === JaggedArray(b)
+b2 = jagged_array(b)
+@test b2 === b
 T = typeof(b)
 c = T(b.data,b.ptrs)
 @test c == b
@@ -16,10 +18,13 @@ d = collect(c)
 a = [[1,2],[3,4,5],Int[],[3,4]]
 b = JaggedArray(a)
 c = GenericJaggedArray(b.data,b.ptrs)
+c2 = jagged_array(c)
+@test c2 === c
 @test a == c
 T = typeof(c)
 d = T(c.data,c.ptrs)
 @test c == b
 
+
 end