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Diffstat (limited to 'example/vector/iota-transient-std.cpp')
-rw-r--r-- | example/vector/iota-transient-std.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/example/vector/iota-transient-std.cpp b/example/vector/iota-transient-std.cpp new file mode 100644 index 000000000000..451f44a10306 --- /dev/null +++ b/example/vector/iota-transient-std.cpp @@ -0,0 +1,29 @@ +// +// immer: immutable data structures for C++ +// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente +// +// This software is distributed under the Boost Software License, Version 1.0. +// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt +// + +#include <immer/vector.hpp> +#include <immer/vector_transient.hpp> + +#include <algorithm> +#include <iostream> + +// include:myiota/start +immer::vector<int> myiota(immer::vector<int> v, int first, int last) +{ + auto t = v.transient(); + std::generate_n( + std::back_inserter(t), last - first, [&] { return first++; }); + return t.persistent(); +} +// include:myiota/end + +int main() +{ + auto v = myiota({}, 0, 100); + std::copy(v.begin(), v.end(), std::ostream_iterator<int>{std::cout, "\n"}); +} |