序列点在C语言表达式求值中的作用

The Function of Sequence Points in C Language Expression Evaluation

文章分析了序列点在C语言表达式求值中的作用:序列点左边的操作数要先于其右边的操作数求值,讨论了逗号操作符,、逻辑与操作符&&、逻辑或操作符||和条件操作符?:的问号处需要序列点的原因,举例说明序列点在表达式求值中的作用。

The paper analyzes the function of sequence points in the C language expression evaluation： the operand on the left of the sequence points should be evaluated before that on the right of the sequence points. It also discusses the comma operator, logical conjunction operator ＆＆, logical disjunction operator ｜｜, and the conditional operator？ It shows why the sequence points are needed at the conditional operator？, and illustrates the function of the sequence points in expression evaluation.