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。
Since void is an incomplete type, it is not an object type. Therefore it is not a valid operand to an addition operation. Therefore you cannot perform pointer arithmetic on a void pointer. Notes Originally, it was thought that void* arithmetic was permitted, because of these sections of the...
http://stackoverflow.com/questions/3523145/pointer-arithmetic-for-void-pointer-in-c When a pointer to a particular type (sayint,char,float, ..) is incremented, its value is increased by the size of that data type. If avoidpointer which points to data of sizexis incremented, how does it...
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 maintenance cost 维护费用 subprogram n...
f) 一个指向有10个整型数数组的指针( A pointer to an array of 10 integers) g) 一个指向函数的指针,该函数有一个整型参数并返回一个整型数(A pointer to a function that takes an integer as an argument and returns an integer) h) 一个有10个指针的数组,该指针指向一个函数,该函数有一个整型参数...
The size of data types influences pointer arithmetic. For anintpointer, incrementing it moves it forward by 4 bytes (typically), but for acharpointer, it moves by 1 byte. Arrays and Pointer Arithmetic Arrays in C can be accessed using pointers. The name of the array is essentially the ad...
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...
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 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 ...