map.h

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/*
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  it under the terms of the GNU General Public License, version 2.0,
  as published by the Free Software Foundation.
 
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  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
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  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
 
#ifndef ROUTER_SRC_REST_MRS_SRC_HELPER_CONTAINER_MAP_H_
#define ROUTER_SRC_REST_MRS_SRC_HELPER_CONTAINER_MAP_H_
 
namespace helper {
namespace container {
 
template <typename Container>
typename Container::mapped_type get_value_default(
    const Container &container, const typename Container::key_type &key,
    typename Container::mapped_type &&default_value) {
  auto it = container.find(key);
 
  if (it == container.end()) {
    return default_value;
  }
 
  return it->second;
}
 
template <typename Container>
bool get_value(Container &container, const typename Container::key_type &key,
               typename Container::mapped_type *out) {
  auto it = container.find(key);
 
  if (it == container.end()) {
    return false;
  }
 
  *out = it->second;
 
  return true;
}
 
template <typename Container, typename Output>
bool get_value_other(Container &container,
                     const typename Container::key_type &key, Output *out) {
  auto it = container.find(key);
 
  if (it == container.end()) {
    return false;
  }
 
  *out = it->second;
 
  return true;
}
 
template <typename Container, typename Output>
bool get_value_other(Container &container,
                     const typename Container::key_type &key, Output out) {
  auto it = container.find(key);
 
  if (it == container.end()) {
    return false;
  }
 
  out = it->second;
 
  return true;
}
 
}  // namespace container
}  // namespace helper
 
#endif  // ROUTER_SRC_REST_MRS_SRC_HELPER_CONTAINER_MAP_H_