C

I. effect and reason of byte alignment:Alignment functions and causes: the processing of storage space varies greatly by hardware platform. Some platforms can only access certain types of data from some specific addresses. For example, some

3.2 byte orderCommand from the King! There are only two types of byte order: Lame and Magnificent! I'm kidding, but that's the truth. J In fact, there are two types of computer storage: Big-Endian and Little-Endian ). Computers of different

When the number of parameters in your function is unknown, you can use the macro above for dynamic processing, which undoubtedly adds flexibility to your program. Example: ◎ Usage 1:Func (Type para1, Type para2, Type para3 ,...){/****** Step 1 ******

Pre-compilation is the first step in the entire compilation process. It is the result output by the g ++-E option. This step processes Macros in the source file/header file. Macro commands are commonly used in the following categories: File

Pointer:The pointer is a 4 bytes Integers and the memory address is saved,1. Definition:Type * variable name:Int * p; defined in this way, p has an address and a value, but the value is a random value.It should be initialized: int * p =

Common predefined macros All compilers that follow the iso c Standard must define the following macros. The macro names start with two underscores and end with two underscores. 1. _ DATE __"Alternative text" is a string literal with a compilation

# If _ MSC_VER> 1000# Pragma once# EndifExplanation:This is Microsoft's pre-compilation control.When _ MSC_VER is relatively small, it supports something different from the new version. _ MSC_VER:MS: Microsoft (Microsoft) AbbreviationC: MSC is

Assert. h is the header file in the C standard function library. The assert () macro is defined for program debugging.In the C standard function library, it is a very special header file. You can introduce it several times for different effects.

1. Introduction to operators Arithmetic Operators: +,-, *,/, % (remainder or modulo operation), ++, and -- seven Arithmetic Operators Relational operators: >,=, logical operators: &, |, and ,! Three Types bitwise operation OPERATOR: the amount

[Cpp]# Include # Include  Int main (){Char arr [1000];Int I;For (I = 0; I {Arr [I] =-1-i;}Printf ("% d \ n", strlen (arr )); Return 0;} What are the answers to this question? There must be different answers. The correct answer should be 255. 255?

We all know that C ++ and other object-oriented languages support function overloading. C ++ relies heavily on the Mangling (damage, damage) of function names by the compiler ), that is, after the source code of C ++ is compiled, the name of the

C string operation functions 1. Write a function to reverse the string Version 1-while Void strRev (char * s){Char temp, * end = s + strlen (s)-1;While (end> s){Temp = * s;* S = * end;* End = temp;-- End;++ S;}} Version 2- Void strRev (char *

/*************************************** ************************* *** Auther: liuyongahui* ***** Date:* ** Language: C**************************************** ***********************//*Question 20: How many prime numbers are there between-and all

Print? /* Start the comments in the program header (to avoid any problems encountered during the submission of blog posts, the slash used to indicate that the comments have been deleted)* Copyright and version Declaration of the program* All rights

[Plain] Description For each input string, find the maximum letter (maximum ASCII code) and insert the string "(max)" after the letter )". Input The input data includes multiple test instances. Each instance consists of a string of up to 100

Description There are n integers, so that the last m number is changed to the first m number, and the other numbers are shifted to the following m (m Input The input data has two rows. The first number of the first row is n, followed by n

Abstract: Based on Winsock technology and network communication principles, this paper uses VC ++ programming technology to obtain real-time temperature running graphics on the client through network data transmission, remote monitoring of the

Previous section. First, let's take a look at the example of using this function pointer array. [Cpp] # include # Include   Int Sum (int a, int B){Return a + B;} Int Sub (int a, int B){Return a-B;} Typedef int (* pfFun) (int, int ); Int TestFun (int

1. indent and blankWe know that the C language syntax has no requirements for indentation and blank spaces. spaces, tabs, and line breaks can all be written at will. Code that implements the same function can be well written or ugly. 1.1. Lack of

[Cpp]# Include  Int mylen (char * str ); Int main (){Char * str = "haha ";Printf ("len = % d", mylen (str ));Return 0;} Int mylen (char * str){If (str = NULL) return 0;Int len = 0;For (; * str ++! = '\ 0 ';){Len ++;}Return len;} # Include Int mylen