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+// file : bpkg/types.hxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license : MIT; see accompanying LICENSE file
+
+#ifndef BPKG_TYPES_HXX
+#define BPKG_TYPES_HXX
+
+#include <vector>
+#include <string>
+#include <memory> // unique_ptr, shared_ptr
+#include <utility> // pair
+#include <cstddef> // size_t, nullptr_t
+#include <cstdint> // uint{8,16,32,64}_t
+#include <istream>
+#include <ostream>
+#include <functional> // function, reference_wrapper
+
+#include <ios> // ios_base::failure
+#include <exception> // exception
+#include <stdexcept> // logic_error, invalid_argument, runtime_error
+#include <system_error>
+
+#include <odb/lazy-ptr.hxx>
+
+#include <butl/path>
+#include <butl/optional>
+
+namespace bpkg
+{
+ // Commonly-used types.
+ //
+ using std::uint8_t;
+ using std::uint16_t;
+ using std::uint32_t;
+ using std::uint64_t;
+
+ using std::size_t;
+ using std::nullptr_t;
+
+ using std::pair;
+ using std::string;
+ using std::function;
+ using std::reference_wrapper;
+
+ using std::unique_ptr;
+ using std::shared_ptr;
+ using std::weak_ptr;
+
+ using std::vector;
+
+ using strings = vector<string>;
+ using cstrings = vector<const char*>;
+
+ using std::istream;
+ using std::ostream;
+
+ // Exceptions. While <exception> is included, there is no using for
+ // std::exception -- use qualified.
+ //
+ using std::logic_error;
+ using std::invalid_argument;
+ using std::runtime_error;
+ using std::system_error;
+ using io_error = std::ios_base::failure;
+
+ // <butl/optional>
+ //
+ using butl::optional;
+ using butl::nullopt;
+
+ // ODB smart pointers.
+ //
+ using odb::lazy_shared_ptr;
+ using odb::lazy_weak_ptr;
+
+ // <butl/path>
+ //
+ using butl::path;
+ using butl::dir_path;
+ using butl::basic_path;
+ using butl::invalid_path;
+
+ using paths = std::vector<path>;
+ using dir_paths = std::vector<dir_path>;
+}
+
+// In order to be found (via ADL) these have to be either in std:: or in
+// butl::. The latter is bad idea since libbutl includes the default
+// implementation.
+//
+namespace std
+{
+ // Custom path printing (canonicalized, with trailing slash for directories).
+ //
+ inline ostream&
+ operator<< (ostream& os, const ::butl::path& p)
+ {
+ string r (p.representation ());
+ ::butl::path::traits::canonicalize (r);
+ return os << r;
+ }
+}
+
+#endif // BPKG_TYPES_HXX