Utils.hpp

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#ifndef NAIA_UTILS_HPP
#define NAIA_UTILS_HPP

#include <map>
#include <vector>

namespace NAIA {
template <typename T, typename Key, typename Value>
typename std::enable_if<std::is_convertible<T, Key>::value, bool>::type
KeyExists(T key, const std::map<Key, Value> &container) {
  return !(container.find(static_cast<Key>(key)) == end(container));
}

template <typename T, typename Value>
typename std::enable_if<std::is_convertible<T, size_t>::value, bool>::type
KeyExists(T key, const std::vector<Value> &container) {
  return container.size() > static_cast<size_t>(key);
}

} // namespace NAIA
#endif