C++基础-大括号匹配initializer_list<int> list(直接传入{]数据)

使用initializer_list<int> 可以使用{}作为参数传入到函数中

#include<iostream>
#include<initializer_list>

using namespace std;

void show(initializer_list<int> list)
{
    for(auto i:list) {
        cout << i << endl;
    }
}

void show(initializer_list<const char *> list)
{
    for(auto i:list) {
        cout << i << endl;
    }
}

int * getmem(initializer_list<int> list)
{
    int length = list.size();
    int *p = new int[length];
    int *pbak = p; //备份地址
    for(auto i:list)
    {
        *(p++) = i; //循环赋值
    }
    return pbak;
}

int main()
{
    int a[5]{1, 2, 3, 4, 5};
    show({1, 2, 3, 4, 5, 6, 7, 8, 9});
    show({"fangfang", "huahua", "xiaohua"});

    int *p = getmem({1, 2, 3, 4, 5, 6, 7});
    for(int i = 0; i < 7; i++)
    {
        cout << p[i] << " " << (void *)(p + i) << endl;
    }
}