字符指针和整数指针之间的区别 [英] Difference between character pointer and integer pointer

问题描述

如果我们声明:

Hi,
If we declare:

int i;
int *ptr1 = &i;
*ptr1=10;
cout << ptr1;

ptr1将给出地址.

但是:

Here ptr1 will give the address.

But:

char *ptr2;
ptr2="Priyaa";
cout << ptr2;

这里将给出字符指针的内容.

为什么会有这样的区别?

Here it will give the content of the character pointer.

Why is there such a difference?

推荐答案

因为char *是在C中定义字符串的唯一方法，并且在C ++中通常用于此目的.因此，它旨在以一种期望的方式处理char *.

Because a char * is the only way to define a string in C, and is commonly used for that purpose in C++. So, it''s designed to deal with a char * in the manner that it expects you''d want to deal with it.

cout << (int *)和cout << (char *)
调用ostream::operator <<的不同方法，因为它们必须处理不同的参数类型.
operator <<有几种重载方法.如果您希望具有不同的行为，请自己为要更改的类型重载operater <<.

cout << (int *) and cout << (char *)
call different methods of the ostream::operator << because they have to handle different parameter types.
There are several overloaded methods of the operator <<. If you want to have a different behaviour, overload the operater << yourself for the types you want to change.

不同之处在于两个重载的实现<< .
:)

The difference is in the implementations of the two overloads of the ostream operator <<.
:)

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