Otherwise, if the expression is not a constant, another macro function is called to round up the value to a power of two.

如果表达式不是常量，就调用另一个宏函数把值向上取整到2的幂。

youdao

Otherwise, if the expression is not a constant, another macro function is called to round up the value to a power of two.

如果表达式不是常量，就调用另一个宏函数把值向上取整到2的幂。

youdao