iostream.hpp

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#pragma once
#include <memory>
#include <string>

namespace fc {

  class istream
  {
    public:
      virtual ~istream(){};

      virtual size_t     readsome( char* buf, size_t len ) = 0;
      virtual size_t     readsome( const std::shared_ptr<char>& buf, size_t len, size_t offset ) = 0;

      istream&   read( char* buf, size_t len );
      istream&   read( const std::shared_ptr<char>& buf, size_t len, size_t offset = 0 );
      virtual char get();
      void get( char& c ) { c = get(); }
  };
  typedef std::shared_ptr<istream> istream_ptr;

  class ostream
  {
     public:
       virtual ~ostream(){};
       virtual size_t     writesome( const char* buf, size_t len ) = 0;
       virtual size_t     writesome( const std::shared_ptr<const char>& buf, size_t len, size_t offset ) = 0;
       virtual void       close() = 0;
       virtual void       flush() = 0;

       void put( char c ) { write(&c,1); }

       ostream&   write( const char* buf, size_t len );
       ostream&   write( const std::shared_ptr<const char>& buf, size_t len, size_t offset = 0 );
  };

  typedef std::shared_ptr<ostream> ostream_ptr;

  class iostream : public virtual ostream, public virtual istream {};

  fc::istream& getline( fc::istream&, std::string&, char delim = '\n' );

  template<size_t N>
  ostream& operator<<( ostream& o, char (&array)[N] )
  {
     return o.write( array, N );
  }

  ostream& operator<<( ostream& o, char );
  ostream& operator<<( ostream& o, const char* v );
  ostream& operator<<( ostream& o, const std::string& v );
  ostream& operator<<( ostream& o, const std::string& v );
  ostream& operator<<( ostream& o, const double& v );
  ostream& operator<<( ostream& o, const float& v );
  ostream& operator<<( ostream& o, const int64_t& v );
  ostream& operator<<( ostream& o, const uint64_t& v );
  ostream& operator<<( ostream& o, const int32_t& v );
  ostream& operator<<( ostream& o, const uint32_t& v );
  ostream& operator<<( ostream& o, const int16_t& v );
  ostream& operator<<( ostream& o, const uint16_t& v );
  ostream& operator<<( ostream& o, const int8_t& v );
  ostream& operator<<( ostream& o, const uint8_t& v );
#ifndef _MSC_VER
  ostream& operator<<( ostream& o, const size_t& v );
#endif

  istream& operator>>( istream& o, std::string& v );
  istream& operator>>( istream& o, std::string& v );
  istream& operator>>( istream& o, char& v );
  istream& operator>>( istream& o, double& v );
  istream& operator>>( istream& o, float& v );
  istream& operator>>( istream& o, int64_t& v );
  istream& operator>>( istream& o, uint64_t& v );
  istream& operator>>( istream& o, int32_t& v );
  istream& operator>>( istream& o, uint32_t& v );
  istream& operator>>( istream& o, int16_t& v );
  istream& operator>>( istream& o, uint16_t& v );
  istream& operator>>( istream& o, int8_t& v );
  istream& operator>>( istream& o, uint8_t& v );
}