Void pointers in C

【Void pointers in C】的更多相关文章

In this article we are learning about “void pointers” in C language. Before going further it will be good if you refresh about pointers by reading – Introduction to pointers in C. A pointer variable is usually declared with the data type of the “cont…

Pointer arithmetic for void pointer in C

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…

(转) Pointers

原地址 http://www.cplusplus.com/doc/tutorial/pointers/ Pointers In earlier chapters, variables have been explained as locations in the computer's memory which can be accessed by their identifier (their name). This way, the program does not need to care…

clang_intprt_t类型探究

作者:玄魂工作室-钱海龙问题这篇手把手教你构建 C 语言编译器,里面有着这样的代码 void eval() { int op, *tmp; while (1) { if (op == IMM) {ax = *pc++;} // load immediate value to ax else if (op == LC) {ax = *(char *)ax;} // load character to ax, address in ax else if (op == LI) {ax = *(in…

C语言指针转换为intptr_t类型

1.前言今天在看代码时,发现将之一个指针赋值给一个intptr_t类型的变量.由于之前没有见过intptr_t这样数据类型,凭感觉认为intptr_t是int类型的指针.感觉很奇怪,为何要将一个指针这样做呢?如是果断上网查查,发现我的感觉是错误的,所以,任何事情不能凭感觉,要弄清楚来龙去脉.先总结一下intptr_t类型,然后介绍指针与intptr_t类型的转换,最后给出测试程序. 2.intptr_t类型我接触最早的处理器是32位,目前64位处理器发展迅速.数据类型特别是int相关的类型在…

有关stdint.h 文件

有关stdint.h 文件 Google C++编程规范的P25页有如下叙述: <stdint.h> 定义了 int16_t . uint32_t . int64_t 等整型,在需要确定大小的整型时可以使用它们代替 short . unsigned long long 等,在 C 整型中,只使用 int .适当情况下,推荐使用标准类型如 size_t 和 ptrdiff_t . 最常使用的是,对整数来说,通常不会用到太大,如循环计数等,可以使用普通的 int . 你可以认为 int 至少为…

c语言二叉树

Department of Computing and Information SystemsCOMP10002 Foundations of AlgorithmsSemester 2, 2014Assignment 2Learning OutcomesIn this project you will demonstrate your understanding of dynamic memory and linked data structures.You will also extend y…