Learn about C pointer arithmetic, its operations, and how to effectively use pointers in C programming for better code manipulation.
除了使用赋值操作让一个指针引用一个给定的对象或函数,也可以使用算术运算来修改一个对象指针。当进行指针算术运算(pointer arithmetic)时,编译器会自动在运算中采用指针所指类型的空间大小。 对于指向对象的指针,可以进行下列的运算: (1)对一个指针执行整数加法和减法操作。 (2)两个指针相减。 (3)比较两个指针。
Void pointers can point to any memory chunk. Hence the compiler does not know how many bytes to increment/decrement when we attempt pointer arithmetic on a void pointer. Therefore void pointers must be first typecast to a known type before they can be involved in any pointer arithmetic. void ...
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, ...
当进行指针算术运算(pointer arithmetic)时,编译器会自动在运算中采用指针所指类型的空间大小。 对于指向对象的指针,可以进行下列的运算: (1) 对一个指针执行整数加法和减法操作。 (2) 两个指针相减。 (3) 比较两个指针。 当将两个指针相减时,这两个指针必须具有相同的基本类型,但是类型限定符则不需要一样。
1Pointer arithmetic There are four arithmetic operators that can be used in pointers: ++, --, +, - 2Array of pointers You can define arrays to hold a number of pointers. 3Pointer to pointer C allows you to have pointer on a pointer and so on. ...
pointer n.指针 natural language 自然语言 array n.数组矩阵, source text 源文本 subscript n.下标 intermediate language 中间语言 type conversion 类型转换 software development 软件开发 address arithmetic 地址运算 map vt.映射,计划 denote vt.指示,表示 ...
Pointer arithmetic - 指针运算 Dynamic memory allocation - 动态内存分配 Memory leak - 内存泄漏 Address space - 地址空间 Endianness - 字节顺序 File I/O - 文件输入输出 Binary file - 二进制文件 Text file - 文本文件 Command-line interface (CLI) - 命令行界面 ...
pointer n.指针 natural language 自然语言 array n.数组矩阵, source text 源文本 subscript n.下标 intermediate language 中间语言 type conversion 类型转换 software development 软件开发 address arithmetic 地址运算 map vt.映射,计划 denote vt.指示,表示 ...
摘要:该文从指针的概念、运算、使用、灵活应用时应注意的事项等方面对C语言指针进行浅析和探讨。指导学生如何应用指针。 关键词:C语言;指针;指针变量;地址 Abstract: In this paper,the concept of pointer,pointer arithmetic,pointer of use, flexible application should pay attention to in terms of C language...