pass by reference pointer

From: http://blog.csdn.net/listening_music/article/details/6921608 The following is a brief introduction: Pointer-for a type T, T * is the pointer type pointing to T, that is, a T * type variable can save the address of a t object, type t can be

1. Value Delivery void f (int p) { printf ("\n%x", &p); printf ("\n%x", p); P=0xff; } void Main () { int a=0x10; printf ("\n%x", &a); printf ("\n%x\n", a); f (a); printf ("\n%x\n", a); } As we can see in the example above, the int a=0x1

Original article link Pointers and references are quite different in form, but they all seem to have the same functionality and can directly reference objects and perform direct operations on them. But when should I use pointers? When can I use

And about the value of delivery, pointer passing, reference transmission in these areas there will be misunderstandings, all I feel the need here also explain ~ Pointers are the same points and different points as references: ★ The same point:1.

The difference between value passing, pointer passing, and reference passingThe rules of the C language are simple:"All arguments are invocation of values." on the basis of this statement, we analyze the difference between value passing, pointer

Http://blog.sina.com.cn/s/blog_673ef8130100imsp.html A pointer passing parameter is essentially a value passing method, which transmits an address value. During the value transfer process, parameters in the form of the called function are

The difference between pointers to different types is that the pointer type knows what the compiler interprets in memory content and size in a particular address (the address the pointer points to), whereas the void* pointer represents only one

1. The concept of pointers In the computer, all the data is stored in the memory. In general, a byte in memory is called a memory unit, different data types occupy a number of memory units, such as the integer 2 units, the character of 1 units, etc.,

This article is reproduced from http://www.cnblogs.com/tracylee/archive/2012/12/04/2801519.htmlThe difference between a reference and a pointer in C + +The difference between pointers to different types is that the pointer type knows what the

To understand the difference between value passing, pointer passing, and reference passing, the main purpose is to understand the arguments and parameters of the function, the scope of the function (automatic variables, stacks), the layout of the