define x

#define EC (x) l# #x role Description Indicates L is connected with X. #define CONN (x,y) x# #y #define TOCHAR (x) #@x #define TOSTRING (x) #x x# #y表示什么? Represents x connection Y, for example: int n = Conn (123,456); The result is n=123456;

Define an array of integers and enter an integer x, if x is not in this array, returns the position of the maximum number less than x and the position of the smallest number greater than X J;If x is in this array, the position of the number in the

The difference between #define, const, typedef#define is not defining variables, it's just for text substitution.For example:#define PI 3.1415926float Angel;angel=30*pi/180;Then, when the program is compiled, the compiler will first "#define PI 3.141

#define LOWBIT (x) ((x) & (-X))Can also be written as follows:int Lowbit (x) {Return x& (-X);}For example:1> x = 1:Decimal to binary (the number of bits is 8):1 = 0000 0001-1=> 1111 1111(here is the complement of 1)The bits operation for 1& (-1) is (

#define是C语言中提供的宏定义命令, the main purpose is to provide programmers with certain convenience in programming, and to a certain extent, improve the efficiency of the program, but students often do not understand the nature of the command in learning,

1. Define (that is, host variable)The main role of the host variable is to act as an alternative variable, a medium in which the host environment can interact with Oracle . When you define a host variable by define, you must specify the variable

#: Arguments are converted to strings#define STR (x) #x#define MAX 100STR (max) is expanded to "Max"This has a flaw, if the entry is a macro, and can not print out the value of the macro (such as the previous example, only print out Max, and

Definition: The # define Directive You can use the # define directive to give a meaningful name to a constant in your program. The two forms of the syntax are: Syntax # Define identifier token-stringopt # Define identifier [(identifieropt,...,

# Define lowbit (x) & (-x) Principle details, # Define lowbit (x) & (-x )) It can also be written as follows: Int Lowbit (x ){ Return x & (-x ); } For example: 1> x = 1: Convert decimal to binary (8 digits ): 1 => 0000 0001 -1 => 1111 1111(Here is

Introduction to C language lattice model Programming Author: Zhang guiquan I love you !" . In the win-TC programming environment, I used the Chinese character dot matrix generation tool to directly generate a 64-dot matrix array of bytes, and then