相关疑难解决方法(0)

我有一个问题,分配如下数组:

int a[];
int b[] = {1,2,3};
&a = &b;

我知道我可以使用指针,但我想这样试试......

让我用一个例子来解释 -

#include <iostream>

void foo( int a[2], int b[2] ) // I understand that, compiler doesn't bother about the
                               // array index and converts them to int *a, int *b
{
    a = b ;  // At this point, how ever assignment operation is valid.

}

int main()
{
    int a[] = { 1,2 };
    int b[] = { 3,4 };

    foo( a, b );

    a = b; // Why is this invalid here.

    return 0;
}

是因为,当传递给函数时,数组衰减到指针,可以进行foo(..) …