C

These macros are used for Conditional compilation. Generally, all the rows in the source program are compiled. However, sometimes you want to compile a part of the content only when certain conditions are met, that is, to specify the compilation

The last assignment of my sophomore year will come to an end after tomorrow's reply. This course was not designed with great care, so it was basically completed on a pay-as-you-go basis. However, there are still a lot of things to learn, so I just

typedefstruct { int cards[52]; int num_cards;}POKER ;   . In both cases, the scores are described with low and high. The final valid score is described in score.   typedefstruct { int score; int low ; int high ;}GAMER ;   Void game_21

I read WinSock programming in "Windows programming" compiled by instructor Wang Yanping. I will sort it out here. U_short htons (u_short hostshort) // convert the byte sequence of a u_short type from the host to the TCP/IP network byte

C language Enumeration type, C language EnumerationC language Enumeration type (Enum ): The format is enum typeName {valueName1, valueName2, valueName3 ,......}; Enum type name {name 1, name 2} enumeration variable. The enumerated value starts

Size of three numbers in C language and three in C LanguageTake 1 2 3 as an example to consider all possible input types (not listed here): 1 2 3; 3 2 1; 2 1 3; 1 1 1; 1 2 2; 1 2 1; the overall idea is to take two numbers from the input three

Error: stray' \ 357 'in program programming error summary, stray357Error: Compilation error: stray '\ 357' in programCause: the full-width characters are entered in the program. Specific analysis causes:In programming, due to the Fast typing,

Service_logger, skynet_error, and skynet source code analysis, The service_srv directory is a c service template attached to the skynet core module, such as the logger service used for log output and the snlua service used to run lua scripts. It is

Add, delete, modify, and query the most comprehensive C-language linked list 1 // This is written in C language, but an error is reported because len (current node length) 2 // cannot be inserted or deleted) then change 3 // delete cannot be used

Include for easy search and include for search # Include // set the insertion point# Include // Character Processing# Include // defines error codes.# Include // floating point number processing# Include // file input/output# Include //

The C language implementation of the linked list: Implementation Details of a single-chain table, details of a single-chain tableI. Create a single-chain table With the foundation of dynamic memory allocation, it is not difficult to implement a

Basic concepts of pointers in C language and basic concepts of pointers in C LanguageBasic concepts of pointers in C Language # Include "stdafx. h "int main () {int a = 3, * p; p = & a; // assign the address of variable a to pointer p, that is, p

In_of macro definition, contain_of macro Container_of is a common macro in Linux kernel. It is used to obtain the pointer of the structure from the pointer contained in a structure, generally, the first address of a member in the struct variable is

C-Language Data Structure: Use a flag to implement a cyclic queue and a data structure queue 1 # include 2 # include 3 4 # define MAXSIZE 10 // define the queue length 5 6 static int flag = 0; // define the flag position 7 8 typedef struct {9 int *

C language-Fox and rabbit stories, C language Fox Description There are 10 holes on the top of the mountain. One fox and one rabbit each have one hole. The fox always wants to eat rabbits. One day, the rabbit said to the fox, "if you want to eat, I

Difference between Strlen () and Sizeof (); Difference between strlensizeof The strlen () function is used to calculate the actual length of a string. It is obtained from the beginning to the First '\ 0'. If you only define that it is not assigned

Reprint ------------ memcpy () function usage of C function, memcpy function usage Reprinted on http://blog.csdn.net/tigerjibo/article/details/6841531 Function prototype Void * memcpy (void * dest, const void * src, size_t n ); Function Data of n

C language past and present, C language past and present 1. Development of Computer Language Machine language: it is actually binary 0 and 1. The minimum value is 00000000 and the maximum value is 11111111. the 8-bit bits are 1 byte, 1 k = 1024

HDU--1872 stable sorting, hdu -- 1872 stable sortingAs we all know, quick sorting is an unstable sorting method.If any aii, ajj (I A university admissions office obtains a score list, which records the names and scores of the candidates. In addition,

This article focuses on two parts: Symbol overloading and computing priority. These two problems are very common and cumbersome. I guess most people choose to ignore the content of this chapter when learning. However, during interviews, I often take