c ++ 打印char指针_C ++程序打印不同类型的指针的大小以及值和地址

红太狼 2023-03-05 06:26 36阅读 0赞

c ++ 打印char指针

Here, we will learn how we can print the size of different type of pointer variables in c++ programming language?

在这里，我们将学习如何在c ++编程语言中打印不同类型的指针变量的大小？

We are using sizeof() operator to get the size of variables.

我们正在使用sizeof()运算符来获取变量的大小。

**Consider the following program:**

**考虑以下程序：**

#include <iostream>
    
    using namespace std;
    
    int main()
    {
        
    	int   *iptr;
    	char  *cptr;
    	float *fptr;
    	
    	cout<<sizeof(iptr)<<","<<sizeof(cptr)<<","<<sizeof(fptr)<<endl;
    	cout<<sizeof(*iptr)<<","<<sizeof(*cptr)<<","<<sizeof(*fptr)<<endl;	
    	
    	return 0;	
    }

### 输出量 **(**Output**)** ###

8,8,8 
    4,1,4

Program is compiled and executed on a 64 bits computer system architecture, that’s why the size of the pointer is 8.

程序是在64位计算机系统体系结构上编译和执行的，这就是指针大小为8的原因。

In the above program, we are declaring 3 pointer variables iptr, cptr and fptr of integer, character and float type.

在上面的程序中，我们声明了整数，字符和浮点类型的3个指针变量iptr ， cptr和fptr 。

And we are printing the size of these pointer variables along with the type of value (which will be stored in these the address stored in pointer variables).

而且我们正在打印这些指针变量的大小以及值的类型(值将存储在指针变量中的地址中)。

> 翻译自: [https://www.includehelp.com/code-snippets/cpp-print-the-size-of-different-type-of-pointers-along-with-value-addresses.aspx][https_www.includehelp.com_code-snippets_cpp-print-the-size-of-different-type-of-pointers-along-with-value-addresses.aspx]

c ++ 打印char指针

[https_www.includehelp.com_code-snippets_cpp-print-the-size-of-different-type-of-pointers-along-with-value-addresses.aspx]: https://www.includehelp.com/code-snippets/cpp-print-the-size-of-different-type-of-pointers-along-with-value-addresses.aspx