87 lines
2 KiB
C++
87 lines
2 KiB
C++
#pragma once
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#include <fc/utility.hpp>
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#include <fc/lexical_cast.hpp>
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namespace fc {
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class string;
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class istream {
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public:
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virtual ~istream(){};
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virtual size_t readsome( char* buf, size_t len ) = 0;
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virtual istream& read( char* buf, size_t len ) = 0;
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virtual bool eof()const = 0;
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};
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class ostream {
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public:
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virtual ~ostream(){};
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virtual ostream& write( const char* buf, size_t len ) = 0;
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virtual void close(){}
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virtual void flush(){}
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};
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class iostream : public virtual ostream, public virtual istream {};
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struct cout_t : virtual public ostream {
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virtual ostream& write( const char* buf, size_t len );
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virtual void close();
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virtual void flush();
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virtual ostream& write( const fc::string& );
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};
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struct cerr_t : virtual public ostream {
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virtual ostream& write( const char* buf, size_t len );
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virtual void close();
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virtual void flush();
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virtual ostream& write( const fc::string& );
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};
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struct cin_t : virtual public istream {
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virtual size_t readsome( char* buf, size_t len );
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virtual istream& read( char* buf, size_t len );
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virtual bool eof()const;
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};
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fc::istream& getline( fc::istream&, fc::string&, char delim = '\n' );
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extern cout_t cout;
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extern cerr_t cerr;
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extern cin_t cin;
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template<typename T>
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ostream& operator<<( ostream& o, const T& v ) {
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auto str = fc::lexical_cast<fc::string>(v);
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o.write( str.c_str(), str.size() );
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return o;
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}
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ostream& operator<<( ostream& o, const char* v );
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template<typename T>
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ostream& operator<<( ostream& o, const fc::string& str ) {
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o.write( str.c_str(), str.size() );
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return o;
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}
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template<typename T>
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istream& operator>>( istream& o, T& v ) {
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fc::string str;
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getline( o, str, ' ' );
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v = fc::lexical_cast<T>(str);
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return o;
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}
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template<typename T>
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cin_t& operator>>( cin_t& o, T& v ) {
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fc::string str;
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getline( o, str, ' ' );
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v = fc::lexical_cast<T>(str);
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return o;
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}
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}
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