push_front
语法:
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void push_front( const TYPE &val ); |
push_front()函数将val连接到链表的头部。
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源代码 /** * @brief Add data to the front of the %list. * @param x Data to be added. * * This is a typical stack operation. The function creates an * element at the front of the %list and assigns the given data * to it. Due to the nature of a %list this operation can be * done in constant time, and does not invalidate iterators and * references. */ void push_front(const value_type& __x) { this->_M_insert(begin(), __x); } |
测试代码
测试结果
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