PIT/include/pit/iters.h

57 lines
1.6 KiB
C++

#include <cstdlib>
namespace pit{
template<typename T>
class passthrough{
T underlying;
public:
passthrough<T>(T underlying): underlying(underlying){}
passthrough<T>(passthrough<T>& from): underlying(from.underlying){}
passthrough<T> operator+(std::size_t amount){
return passthrough<T>(this->underlying+amount);
}
void operator+=(std::size_t amount){
this->underlying += amount;
}
passthrough<T> operator-(std::size_t amount){
return passthrough<T>(this->underlying-amount);
}
void operator-=(std::size_t amount){
this->underlying -= amount;
}
T const& operator*(){
return this->underlying;
}
bool operator==(passthrough<T> const& rhs){
return this->underlying == rhs.underlying;
}
};
template<typename T>
class range{
private:
T beginning;
T ending;
public:
range<T>(T begin, T end):beginning(begin), ending(end){}
passthrough<T> begin(){
return passthrough<T>(this->beginning);
}
passthrough<T> end(){
return passthrough<T>(this->ending);
}
};
template<typename T>
class repeat{
T val;
public:
// noops
repeat<T> operator+(std::size_t ){}
repeat<T> operator-(std::size_t ){}
void operator+=(std::size_t ){}
void operator-=(std::size_t ){}
bool operator==(repeat const& rhs){return true;}
T const& operator*(){
return this->val;
}
};
}