Parameters. For example, by personalizing the CRM system, its integrated functionality makes it more appealing to Buyers.The software industry can be easily divided into recording systems and workflow Applications. A recording system is a single source of information for a particular department or Company. CRM is the standard sales information source, and ERP system is the standard company financial information source. The record system is valuable because it generates reports for the Company's
/*** book: "thinkinginc++" * Function: about the use of macros, explore the disadvantages of using macros * Time: September 11, 2014 07:50:54* Author: cutter_point*/#include ". /require.h "#include "Thinkinginc++" 47, about the use of macros, explore the disadvantages of using macros
For a long time, macro definition # define is used to define some simple constants. At most, it is used to define a function. It seldom pays attention to macro definition usage. Until the following code is displayed:
#define PLAYSOUNDEFFECT(...) \[[GameManager sharedGameManager] playSoundEffect:@#__VA_ARGS__]
I have never thought about such a powerful usage before. Take a look at some iOS framework header files and find that almost all of them are macro-defined:
I have to say that macro defi
Developed with VCProgramIt is best to use the verify macro instead of assert,
I didn't know why. Today I read the definition of two macros and finally understood it.
1. In debug mode, two macros have the same functions.
2. In the release mode, assert does not calculate the expressions in the parameters. Verify calculates the expressions in the parameters (if it is a function, it will call the function ).
, which is (type *)2: Function and Principle analysis:(1) Function: A pointer to an element in a struct, and a pointer to the struct variable. YesThe CONTAINER_OF macro, we can get pointers to the entire struct variable from the pointer of an element, and thenGet pointers to other elements in the struct.(2) The function of the TypeOf keyword is: Typepof (a) is the type of a given by variable A, typeof is theVariable name gets the variable data type.(3) How this macro works: First use typeof to g
When you record a macro, you can click the toolbar buttons and menu options. However, the macro recorder cannot record mouse motions in the document window, and you must record these actions with the keyboard if you want to move the insertion point, select text, and scroll through the document.
If a dialog box appears during recording, Word will record the dialog box and record all the options settings for the dialog box only if the OK button or close is selected in the selection dialog box. Fo
Predefined macros,
Compilers usually provide different predefined macros for compiled programs based on different platforms and compilation options,
For example, Win32 win64 Linux, such as debug and release.
1. When using the GCC/g ++ compiler, you can run the following command to print the macros pre-compiled by the compiler.
Gcc-DM-e-
2. For details abou
If you want to serialize the macro parameter extension results, you must use two levels of macros.
1 # define xstr (s) STR (S) 2 # define STR (s) # S3 # define Foo 44 STR (FOO) 5 => "foo" 6 xstr (FOO) 7 ==> xstr (4) 8 ==> STR (4) 9 ==> "4"
When S is used in STR, S is stringized, so it is not a macro extension first.
However, S is a common parameter of xstr. Therefore, s itself has been expanded before the xstr macro extension is complete.
When STR
[ThinkingInC ++] 47. Regarding the Use of macros, we explored the disadvantages of using macros. thinkinginc47
/*** Book: [ThinkingInC ++] * function: describes the use of macros. * Time: 07:50:54, January 1, September 11, 2014 * Author: cutter_point */# include ".. /require. h "# include
Reasons for liking Wang Lihong
It can be said that I am a little similar
and print it out!
So we have the following story...
Compiler built-in macros:
First, we will introduce several built-in macro definitions of the compiler. These macro definitions can not only help us write cross-platform source code, but also help us output useful debugging information flexibly.
The ansi c standard has several predefined macros (which are also commonly used ):
_ Line __: Insert the current
Use of Conditional compilation macros and Conditional compilation macros
Jni is often used when writing code in cocos. Sometimes the class instance pointer is used in the c ++ code of jni.
1. define a global variable
# If (CC_TARGET_PLATFORM = CC_PLATFORM_ANDROID) GameInstance * gameInstance = nullptr; # endif
2. In the constructor
# If (CC_TARGET_PLATFORM = CC_PLATFORM_ANDROID) GameInstance * gameInst
1: Let's test and create an excel file, such as "haiguifurong1 ..2: If you want to enable the document, the following message is displayed: "macro disabled.3: click "OK".Table.4: as shown in the following figure, in "tools"-"security" settings, the effect is as follows.5: Go to the macro's "security"-"low"-"OK", and open the excel file again without being affected by the macro.Now you have successfully deleted the
Document directory
Code vs. Data
Homoiconicity, code = Data
Working with macros
Debugging macros
Code Templating
When to use macros
Using macros, for example
What is metaprogramming?
Metaprogramming is the use of code to modify or create other code.It is primarily a developer tool and acts as a force multiplie
Excel/word macros have been disabled workaround come on, little fat will tell you that. "Macros have been disabled" prompts the workaround, these two prompts in Excel and Word often appear, how to do? Please try the following method.
--word macros have been disabled workaround
Method One, Word Options--> Add-ins--> manage "COM add-ins," and go to-->
You can easily set up double-sided print Word documents in the Word2003 Print dialog box, but there is no setup option for duplex printing in Excle2003. Users can implement double-sided printing Excel2003 tables by editing macro commands in Excel2003.
1. Edit Excel2003 Macros Command
The first time you use the macro feature in Excel2003, you need to add a Personal macro workbook (that is, Pernosal.xls), and then use the Visual Basic Editor to edit t
preprocessing Directives
The Swift compiler does not contain pre-processors. Instead, it takes advantage of compile-time properties to generate configuration and language features to accomplish the same functionality. Therefore, Swift does not introduce pre-processing instructions.
Simple Macro
In C and objective-c, you typically use a # define directive that defines a basic constant in swift, which you can use instead of global constants. For example: A global definition of # define Fade_a
Excel macros may be tall for beginners, but if you're skilled, you'll find it's not, and Excel macros are powerful, but they're disabled by default because of security risks, and the following small series teaches you how to turn on macros that are disabled by default in Excel.
Excel
Excel macros have been d
--word macros have been disabled workaround
Method One, Word Options--> Add-ins--> manage "COM add-ins," and go to--> the "Manuscript Wizard, calligraphy add-in, office special symbol input add-in" three cancel--> OK.
Method Two, tool--> macro-> security--> a trusted publisher, empty the hook in the selection box below, and then change the macro security to the highest.
Method Three, you may be the first time you installed Office in the share of VB
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