In this tutorial, you will learn about thedangling pointer,void pointer,NULL, andwild pointerin C. I have already written a brief article on these topics. The main aim of this blog post to give you a quick introduction to these important concepts. Also, I will describe different states of...
Pointer arithmetic for void pointer in C When a pointer to a particular type (say int, char, float, ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, how does it get to point x bytes ahead?
while avoidpointer is a type of pointer that can point to somewhere without a specific type. One refers to the value stored in the pointer, and the other to the type of data it points to.]
http://stackoverflow.com/questions/3523145/pointer-arithmetic-for-void-pointer-in-c When a pointer to a particular type (say int, char, float, ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, ...
Here, we will learn how to pass a string (character pointer) in a function, where function argument is void pointer.Consider the given example#include <stdio.h> //function prototype void printString(void *ptr); int main() { char *str="Hi, there!"; printString(str); return 0; } /...
/*C program to demonstrate example of void pointer*/ #include <stdio.h> int main(){ void *voidPointer; int a=10;; float b=1.234f; char c='x'; voidPointer=&a; printf("value of a: %d\n",*(int*)voidPointer); voidPointer=&b; printf("value of b: %f\n",*(float*)void...
A void* pointer can be assigned to any type of pointers - C++ Data Type C++ examples for Data Type:Pointer HOME C++ Data Type Pointer Description A void* pointer can be assigned to any type of pointers Demo Codeint main() {/*from www.j a v a 2 s. com*/ void* vp; ...
C/C++面试题:void*通常怎么使用?——快手一面 void* 是一种特殊的指针类型,可以指向任何数据类型的对象(或函数)的地址,但它本身不包含任何关于它所指向对象类型的信息。 void* 在 C 和 C++ 中被称为“无类型指针”或“通用指针”(generic pointer)。它是一种特殊的指针类型,可以指向任何数据类型的对象(或...
Void and void pointer 1.概述 许多初学者对C/C++语言中的void及void指针类型不甚理解,因此在使用上出现了一些错误。本文将对void关键字的深刻含义进行解说,并详述void及void指针类型的使用方法与技巧。 2.void的含义 void的字面意思是“无类型”,void *则为“无类型指针”,void *可以指向任何类型的数据。
Functions may be return type functions and non-return type functions. The non-return type functions do not return any value to the calling function; the type of such functions is void. These functions may or may not have any argument to act upon. A few i