JSTDToolkit.hh

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#ifndef __JLANG__JSTDTOOLKIT__
#define __JLANG__JSTDTOOLKIT__

#include "JLang/JSTDTypes.hh"
#include "JLang/JStreamAvailable.hh"
#include "JLang/JException.hh"


/**
 * \author mdejong
 */

/**
 * Auxiliary classes and methods for STD containers.
 */
namespace JLANG {}
namespace JPP { using namespace JLANG; }

namespace JLANG {

  /**
   * Get value in map.
   *
   * Note that this method throws an exception if the given key is absent.
   *
   * \param  map          map
   * \param  key          key
   * \return              value
   */
  template<class JKey_t, class JValue_t, class JComparator_t, class JAllocator_t>
  inline const JValue_t& get_key(const std::map<JKey_t, JValue_t, JComparator_t, JAllocator_t>& map, const JKey_t key)
  {
    typename std::map<JKey_t, JValue_t, JComparator_t, JAllocator_t>::const_iterator i = map.find(key);

    if (i != map.end()) {

      return i->second;

    } else {

      THROW(JTypeInformationException, "Invalid key <" << STREAM("?") << key << ">");
    }
  }
}

#endif