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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [ext/] [pb_assoc/] [example/] [ds_traits.cc] - Rev 19
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// -*- C++ -*- // Copyright (C) 2005 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 2, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice and // this permission notice appear in supporting documentation. None of // the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied warranty. /** * @file ds_traits_example.cpp * A basic example showing how to use ds_traits for querying container types * for their behavior. */ // For various associative containers. #include <ext/pb_assoc/assoc_cntnr.hpp> // For ds_traits. #include <ext/pb_assoc/ds_trait.hpp> // For cout, endl. #include <iostream> template<class DS_Category> void print_ds_category(DS_Category); template<> void print_ds_category(pb_assoc::cc_hash_ds_tag) { std::cout << "Collision-chaining hash based associative-container:" << std::endl; } template<> void print_ds_category(pb_assoc::gp_hash_ds_tag) { std::cout << "Probing hash based associative-container:" << std::endl; } template<> void print_ds_category(pb_assoc::rb_tree_ds_tag) { std::cout << "Red-black tree associative-container:" << std::endl; } template<> void print_ds_category(pb_assoc::splay_tree_ds_tag) { std::cout << "Splay tree associative-container:" << std::endl; } template<> void print_ds_category(pb_assoc::ov_tree_ds_tag) { std::cout << "Ordered-vector tree associative-container:" << std::endl; } template<> void print_ds_category(pb_assoc::lu_ds_tag) { std::cout << "List-based associative-container:" << std::endl; } void print_erase_can_throw(bool can) { if (can) { std::cout << "Erase can throw" << std::endl; return; } std::cout << "Erase cannot throw" << std::endl; } void print_order_preserving(bool does) { if (does) { std::cout << "Preserves order" << std::endl; return; } std::cout << "Does not preserve order" << std::endl; } void print_erase_iterators(bool can) { if (can) { std::cout << "Can erase iterators" << std::endl; return; } std::cout << "Cannot erase iterators" << std::endl; } template<class Invalidation_Guarantee> void print_invalidation_guarantee(Invalidation_Guarantee); template<> void print_invalidation_guarantee(pb_assoc::basic_invalidation_guarantee) { std::cout << "Guarantees only that found references, pointers, and " "iterators are valid as long as the container object is not " "modified" << std::endl; } template<> void print_invalidation_guarantee(pb_assoc::find_invalidation_guarantee) { std::cout << "Guarantees that found references, pointers, and " "find_iterators are valid even if the container object " "is modified" << std::endl; } template<> void print_invalidation_guarantee(pb_assoc::range_invalidation_guarantee) { std::cout << "Guarantees that iterators remain valid even if the " "container object is modified" << std::endl; } void print_reverse_iteration(bool does) { if (does) { std::cout << "Supports reverse iteration" << std::endl; return; } std::cout << "Does not support reverse iteration" << std::endl; } void print_split_join(bool does) { if (does) { std::cout << "Supports split and join" << std::endl; return; } std::cout << "Does not support split and join" << std::endl; } template<class Cntnr> void print_container_attributes() { // First print out the data-structure category. print_ds_category(typename Cntnr::ds_category()); // Next is the data-structure traits class of the container. typedef pb_assoc::ds_traits< Cntnr> traits; // Now print the attributes of the container. print_erase_can_throw(traits::erase_can_throw); print_order_preserving(traits::order_preserving); print_erase_iterators(traits::erase_iterators); print_invalidation_guarantee(typename traits::invalidation_guarantee()); print_reverse_iteration(traits::reverse_iteration); print_split_join(traits::split_join); std::cout << std::endl << std::endl; } int main() { print_container_attributes<pb_assoc::cc_hash_assoc_cntnr<int, char> >(); print_container_attributes<pb_assoc::gp_hash_assoc_cntnr<int, char> >(); print_container_attributes<pb_assoc::tree_assoc_cntnr<int, char> >(); print_container_attributes<pb_assoc::tree_assoc_cntnr< int, char, std::less<int>, pb_assoc::splay_tree_ds_tag> >(); print_container_attributes<pb_assoc::tree_assoc_cntnr< int, char, std::less<int>, pb_assoc::ov_tree_ds_tag> >(); print_container_attributes<pb_assoc::lu_assoc_cntnr<int, char> >(); typedef pb_assoc::lu_assoc_cntnr< int, pb_assoc::compound_data_type< pb_assoc::gp_hash_assoc_cntnr< char, pb_assoc::null_data_type> > > mmap_t; print_container_attributes<mmap_t>(); }