63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
#pragma once
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#include <iostream>
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#include <ostream>
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#include <sstream>
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#define NAME_VALUE(v)#v," : ",(v)
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namespace zt {
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template<typename T>
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class Range{
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private:
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T _start,_end,_step;
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public:
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// constexpr Range()=delete;
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constexpr Range(const T start,const T end,const T step)noexcept:_start(start),_end(end),_step(step){}
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constexpr Range(const T start,const T end)noexcept:Range(start,end,1){}
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constexpr Range(const T end)noexcept:Range(1,end,1){}
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struct Iterator{
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T current,step;
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constexpr Iterator()=delete;
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constexpr Iterator(const T start,const T step)noexcept:current(start),step(step){}
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constexpr bool operator!=(const Iterator &other)const noexcept{
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return current<other.current;
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}
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constexpr Iterator& operator++()noexcept{
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current+=step;
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return *this;
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}
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constexpr T operator*()const noexcept{
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return current;
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}
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};
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constexpr Iterator begin(){
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return Iterator(_start,_step);
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}
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constexpr Iterator end(){
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return Iterator(_end,_step);
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}
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};
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template<typename ...Args>
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inline void print(std::ostream &os,const Args&...args){
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std::stringstream ss;
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((ss<<args),...);
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os<<ss.str();
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return;
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}
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template<typename ...Args>
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inline void print(const Args&...args){
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print(std::cin,args...);
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return;
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}
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template<typename ...Args>
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inline void eprint(const Args&...args){
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print(std::cerr,args...);
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return;
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}
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} |