RFC: Added timsort, plus misc. sort updates

base/abstractarray.jl

@@ -1079,6 +1079,34 @@ indices(I::(Indices...)) = map(indices, I)
 
 ## iteration utilities ##
 
+# TODO: something sensible should happen when each_col et. al. are used with a
+# pure function argument
+function each_col!(f::Function, a::AbstractMatrix)
+    m = size(a,1)
+    for i = 1:m:numel(a)
+        f(sub(a, i:(i+m-1)))
+    end
+    return a
+end
+
+function each_row!(f::Function, a::AbstractMatrix)
+    m = size(a,1)
+    for i = 1:m
+        f(sub(a, i:m:numel(a)))
+    end
+    return a
+end
+
+function each_vec!(f::Function, a::AbstractMatrix, dim::Integer)
+    if dim == 1; return each_col!(f,a); end
+    if dim == 2; return each_row!(f,a); end
+    error("invalid matrix dimensions: ", dim)
+end
+
+each_col(f::Function, a::AbstractMatrix) = each_col!(f,copy(a))
+each_row(f::Function, a::AbstractMatrix) = each_row!(f,copy(a))
+each_vec(f::Function, a::AbstractMatrix, d::Integer) = each_vec!(f,copy(a),d)
+
 # slow, but useful
 function cartesian_map(body, t::(Int...), it...)
     idx = length(t)-length(it)

base/combinatorics.jl

@@ -1,3 +1,5 @@
+import Sort.@in_place_matrix_op
+
 function factorial(n::Integer)
     if n < 0
         return zero(n)

base/export.jl

@@ -590,6 +590,8 @@ export
     ipermute,
     isperm,
     issorted,
+    issorted_r,
+    issorted_by,
     last,
     linspace,
     logspace,
@@ -618,10 +620,20 @@ export
     rotl90,
     rotr90,
     search_sorted,
+    search_sorted_r,
+    search_sorted_by,
     search_sorted_first,
+    search_sorted_first_r,
+    search_sorted_first_by,
     search_sorted_last,
+    search_sorted_last_r,
+    search_sorted_last_by,
     select,
+    select_r,
+    select_by,
     select!,
+    select_r!,
+    select_by!,
     shuffle,
     shuffle!,
     size,
@@ -632,6 +644,7 @@ export
     sort_by,
     sort_by!,
     sortperm,
+    sortperm!,
     sortr,
     sortr!,
     squeeze,
@@ -652,6 +665,16 @@ export
     make_loop_nest,
     check_bounds, 
 
+# sort routines
+    insertionsort,
+    insertionsort!,
+    quicksort,
+    quicksort!,
+    mergesort,
+    mergesort!,
+    timsort,
+    timsort!,
+
 # linear algebra
     axpy,
     chol,