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authorLars G Thorsen <[email protected]>2010-01-26 10:13:35 +0000
committerErlang/OTP <[email protected]>2010-01-26 18:55:11 +0100
commitdf88b47cdafcc2e04452456942ea572a7b72e2f2 (patch)
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parent39ff2b44d130179d3ce722a9b3c07d27bfb72a2a (diff)
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OTP-8343 The documentation is now possible to build in an open source
environment after a number of bugs are fixed and some features are added in the documentation build process. - The arity calculation is updated. - The module prefix used in the function names for bif's are removed in the generated links so the links will look like http://www.erlang.org/doc/man/erlang.html#append_element-2 instead of http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2 - Enhanced the menu positioning in the html documentation when a new page is loaded. - A number of corrections in the generation of man pages (thanks to Sergei Golovan) - Moved some man pages to more apropriate sections, pages in section 4 moved to 5 and pages in 6 moved to 7. - The legal notice is taken from the xml book file so OTP's build process can be used for non OTP applications.
Diffstat (limited to 'system/doc/extensions/list_comprehensions.erl')
-rw-r--r--system/doc/extensions/list_comprehensions.erl118
1 files changed, 0 insertions, 118 deletions
diff --git a/system/doc/extensions/list_comprehensions.erl b/system/doc/extensions/list_comprehensions.erl
deleted file mode 100644
index 21ac562aa5..0000000000
--- a/system/doc/extensions/list_comprehensions.erl
+++ /dev/null
@@ -1,118 +0,0 @@
--module(t).
--author('[email protected]').
-
-%%-export([test/2]).
--compile(export_all).
-
-%% Odd numbers.
-
-%%foo(L) -> [ X || X <- L, (X > X-1) == (X /= X-1) ].
-
-bar(L) -> [ X || X <- L, integer(X), gt(X, 3) ].
-
-bar(L, M) -> [ Y || X <- L, integer(X), gt(X, 3),
- Y <- M, float(Y), gt(X, Y)
- ].
-
-baz(L) -> [ X || X <- L, atom(X) ].
-
-buz(L, Min) -> [ X || Min > 3, X <- L, X >= Min ].
-
-gt(X, Y) when X > Y -> true;
-gt(X, Y) -> false.
-
-%% Turn a list into a set.
-make_set([]) -> [];
-make_set([H|T]) ->
- [H|[
- Y || Y <- make_set(T),
- Y =/= H
- ]].
-
-%% Return the Pythagorean triangles with sides
-%% of total length less than N
-pyth(N) ->
- [ {A,B,C} ||
- A <- lists:seq(1,N),
- B <- lists:seq(1,N),
- C <- lists:seq(1,N),
- A+B+C =< N,
- A*A+B*B == C*C
- ].
-
-%% Cut the search space a bit..
-pyth2(N) ->
- [ {A,B,C} ||
- A <- lists:seq(1,N),
- B <- lists:seq(1,N-A+1),
- C <- lists:seq(1,N-A-B+2),
- A+B+C =< N,
- A*A+B*B == C*C ].
-
-%% Return the Cartesian product
-cp() ->
- [ {X,Y} ||
- X <- a(),
- Y <- b()
- ].
-
-cp(A,B) when list(A),list(B) ->
- [ {X,Y} ||
- X <- A,
- Y <- B
- ].
-
-%a() -> 1/0.
-a() -> [a,b].
-b() -> [1,2,3].
-
-%% Return all permutations of a list
-perms([]) -> [[]];
-perms(L) -> [ [H|T] || H <- L, T <- perms(L--[H]) ].
-
-%% Quick sort
-sort([X|Xs]) ->
- sort([ Y || Y <- Xs, Y < X ]) ++
- [X] ++
- sort([ Y || Y <- Xs, Y >= X ]);
-sort([]) -> [].
-
-%% Vector addition
-vecAdd(Xs,Ys) ->
- [ X+Y || {X,Y} <- zip(Xs,Ys) ].
-
-zip([X|Xs],[Y|Ys]) -> [{X,Y}|zip(Xs,Ys)];
-zip([],[]) -> [].
-
-qsort([X|Xs]) ->
- qsort(lt(X,Xs))
- ++ [X] ++
- qsort(ge(X,Xs));
-qsort([]) -> [].
-
-lt(X,[H|T]) when X>H -> [H|lt(X,T)];
-lt(X,[_|T]) -> lt(X,T);
-lt(_,[]) -> [].
-
-ge(X,[H|T]) when X=<H -> [H|ge(X,T)];
-ge(X,[_|T]) -> ge(X,T);
-ge(_,[]) -> [].
-
-test(1,N) -> statistics(runtime),test1(N),statistics(runtime);
-test(2,N) -> statistics(runtime),test2(N),statistics(runtime);
-test(3,N) -> statistics(runtime),test3(N),statistics(runtime).
-
-test1(0) -> true;
-test1(N) ->
- sort([21,12,45,1,3,87,55,77,11,20,6,99,91,13,14,15,66,62,69,71,67,82,83,84,87,86,85]),
- test1(N-1).
-
-test2(0) -> true;
-test2(N) ->
- qsort([21,12,45,1,3,87,55,77,11,20,6,99,91,13,14,15,66,62,69,71,67,82,83,84,87,86,85]),
- test2(N-1).
-
-test3(0) -> true;
-test3(N) ->
- lists:sort([21,12,45,1,3,87,55,77,11,20,6,99,91,13,14,15,66,62,69,71,67,82,83,84,87,86,85]),
- test3(N-1).