utility.h

Amis - A maximum entropy estimator 一个最大熵模型统计工具

#ifndef Amis_Utility_h_

#define Amis_Utility_h_

#include <amis/configure.h>
#include <iostream>

AMIS_NAMESPACE_BEGIN

class StringPair : public std::pair< std::string, std::string > {
public:
  StringPair( const std::string& s1, const std::string& s2 )
    : std::pair< std::string, std::string >( s1, s2 ) {}
};

inline std::ostream& operator<<( std::ostream& os, const StringPair& s ) {
  return os << '(' << s.first << ',' << s.second << ')';
}

class StringTriple : public std::pair< std::string, std::pair< std::string, std::string > > {
public:
  StringTriple( const std::string& s1, const std::string& s2, const std::string& s3 )
    : std::pair< std::string, std::pair< std::string, std::string > >( s1, std::pair< std::string, std::string >( s2, s3 ) ) {}
};

inline std::ostream& operator<<( std::ostream& os, const StringTriple& s ) {
  return os << '(' << s.first << ',' << s.second.first << ',' << s.second.second << ')';
}

AMIS_NAMESPACE_END

#endif // Amis_Utility_h_
// end of Utility.h