macro book

1. How do I differentiate between macro names and macro strings in a macro definition? What should I pay attention to for macros with parameters? In a macro definition, the macro name and macro string are distinguished by spaces.

icons or graphics. Using these macro definitions, the self-describing capability of the program is greatly enhanced. The above example can be changed: static unsigned short stopwatch [] = {S _ x _, S _ x, S _ x, S _ x _, S _ x __, S x _, S x _, S x _, S x _, S x _, S _ x __, S _ x _, S _ x ___, S _ x _, S _ x ______, S _}; Obviously, it means more obvious than the previous code. The standard C language has octal, decimal, and hexadecimal constants

The execution process of inline functions is similar to the macro definition with parameters, but the processing of parameters is different. Macro definitions with parameters are not calculated, but replaced directly. Inline functions are functions first, which means that many of the functions are suitable for inline functions. That is, inline functions evaluate the parameter expressions first, Then pass th

The execution of an inline function is similar to a parameter macro definition, but the parameters are handled differently. The macro definition with parameters does not operate on the parameter, but instead, the inline function is the function, which means that many properties of the function are applicable to the inline function, that is, the inline function evaluates the argument expression first, and th

1, preprocessing instructions (1) Concept: C language in the source program before compiling, will first of some special preprocessing instructions to explain (such as #include (2) Preprocessing instructions are all preceded by "#" and do not end with a semicolon. (3) Preprocessing instructions can be placed anywhere in the file, his scope is from where it appears to the end of the file, we often put it in the source program head, so that its scope is the entire source program file. (4) Preproce

[C language crazy handout] (16) C language simple Address Book (not optimized version), handout address book Knowledge points used in Address Book Development Usage of constants and variables Global Variables Branch statement Function Macro Loop statement Scanf and printf Data Struct File Pointer * Classic problems

Macro alternative solution in C ++ Macro is a god in the C language and can play with various tricks. It is also because of this that it will cause a lot of troubles to ordinary programmers. Since macros only work in the pre-compilation phase, the compiler cannot detect the bugs. As a new C ++ programmer, it is better to stay away from them. C ++ provides some alternative solutions for macros. 1. Constant

Solo windLinks: C Language macro definitions (2)1. How do I distinguish between macro names and macro strings in a macro definition? What should be noted for macros with parameters?In the macro definition, the macro name and

Introduction to preprocessing Directives1.C language before compiling the source program, some special pre-processing instructions (such as the previous use of the # include directive) to produce a new source program (this process is called the compilation preprocessing), and then the usual compilation2. In order to differentiate between preprocessing directives and generic C statements, all preprocessor directives begin with the sign "#" and end without semicolons3. A preprocessing instruction

My previous question stopped for a long time because-I went to write a book.ObjectiveI started working in March 2012 and now I'm six years away. For the past six years, I have never known anything about SQL Server, only the simplest C # programmers have started, stepping back from a nameless outsourcing company to the middle of a larger financial institution, with wages rising to nearly four times times the size of a new job. In the process of struggle, I also go a lot of detours, once very depr

Many C ++ books advise us that C language macros are the first of all evil, but things are not as bad as we think, just like Goto. MacroA major role is to automatically generate code for us. If the template can generate various types of code (type replacement) for us ),In fact, macros can generate new Code (replacement and addition of symbols) on the symbols ). You can find some macro Syntax problems on Google. Believe me, you do not know as much abou

In C ++, although using macros is not recommended, macros often provide us with some convenience, and there are indeed a large number of Macros in the existing code. Some people think that macros are the root cause of errors, because some strange code may appear after macros are expanded, so this article will summarize some methods to view the code after macros are expanded. 1. in Visual Studio 2005, select project Properties> Configuration Properties> C/C ++> Preprocessor, and select generate

The macro in the forum. C/C ++ summarizes various compilation commands in the source code of the C program. These commands are called preprocessing commands. Although they are not actually part of the C language, they extend the C programming environment. This section describes how to use preprocessing programs and annotations to simplify the program development process and improve the readability of the program. The C language Preprocessing Program d