container.hpp

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#pragma once
 
#include <vector>
#include <iterator>
#include <cstddef>
 
namespace sEMU {

template <typename T>
class SimpleBuffer {
public:
    using value_type = T;
    
    SimpleBuffer(std::initializer_list<T> list) : data_(list) {}
 
    // 自定义迭代器类
    class Iterator {
    public:
        using iterator_category = std::forward_iterator_tag;
        using difference_type   = std::ptrdiff_t;
        using value_type        = T;
        using pointer           = T*;
        using reference         = T&;
 
        Iterator(pointer ptr) : ptr_(ptr) {}
 
        reference operator*() const { return *ptr_; }
        pointer operator->() { return ptr_; }
 
        // 前置自增
        Iterator& operator++() {
            ptr_++;
            return *this;
        }
 
        // 后置自增
        Iterator operator++(int) {
            Iterator tmp = *this;
            ++(*this);
            return tmp;
        }
 
        friend bool operator==(const Iterator& a, const Iterator& b) { return a.ptr_ == b.ptr_; }
        friend bool operator!=(const Iterator& a, const Iterator& b) { return a.ptr_ != b.ptr_; }
 
    private:
        pointer ptr_;
    };
 
    Iterator begin() { return Iterator(data_.data()); }
    Iterator end()   { return Iterator(data_.data() + data_.size()); }
 
private:
    std::vector<T> data_;
};
 
} // namespace sEMU