数据成员是否形成范围? [英] Do data members form a range?

问题描述

我可以将相同类型的连续数据成员视为一个范围吗?例如:

Can I treat consecutive data members of the same type as a range? For example:

struct X
{
    int a, b, c, d, e;
};

X x = {42, 13, 97, 11, 31};

std::sort(&x.a, &x.a + 5);   // kosher?

推荐答案

否，这是未定义的行为.您将x.a视为数组的第一个元素，实际上并非如此.可能在某些实现上可行，也可能袭击您的冰箱;)

No, this is undefined behaviour. You are treating x.a like the first element of an array, which it isn't. May work on some implementations, may raid your fridge too ;)

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