macro book

Macro _ cribd analysis, macro _ cribd I have reviewed the C language in the process of learning "Windows program design" and experienced the power of macros._ Cribd Cribd is short for the C run time implement, which refers to the implementation of the C Runtime Library. As user code, you should not use this item. The system prompts whether to use the dll dynamic C Runtime library or a

The C ++ compiler accepts# DefinePreprocessing Program commands. #define identifier (...) replacement_list#define identifier (identifier_list, ...) replacement_list If the listed macro parameters end with a ellipsis, more macro parameters except macro parameters can be called. Other parameters (including commas) are collected into a string, and the

5. A macro instance -- verify the password In this instance, a macro group containing conditions is created to verify the password. If the password is correct, close the identity check window and open another form; if the password is incorrect, a message box is displayed asking you to enter the password again. Create a form, add a text box, and name it "administrator password" to receive the password en

Today, I read chapter 1 "interrupt and interrupt handling procedures" and saw the spin_lock and spin_unlock, so I went into some in-depth research. The spin_lock macro is defined as follows: # Define spin_lock (LOCK) _ spin_lock (LOCK) # DEFINE _ spin_lock (LOCK) _ Lock (Lock) # DEFINE _ Lock (Lock )/ Do {preempt_disable (); _ acquire (Lock); (void) (Lock);} while (0) # Define preempt_disable () do {} while (0) # DEFINE _ acquire (x

Ios development-single-sample macro extraction, ios Development Macro Extraction In daily development, we often use macros, which are essentially replacing the code during compilation. Example 1: // ## Variable names that can be used to splice macros # Define demo (xxx) int # xxx" Main (){ Int intA = 10; Int intB = 20; NSLog (@ "=======% d", demo (A) + demo (B )); } How to Use Singleton ios in development

I feel like a macro. To put it bluntly, it is the flag of a global variable. The method it adds is as follows: [emailprotected]7817:~/PROJECT/PROJECT_V5/32_kk_qhd_k25$ vim mediatek/config/common/ProjectConfig.mk.global Projectconfig. mk. Global, as shown in the following figure. ####################################################################################################################################################################

A #else the //Compiling without ARC + #endif - //releasing an object $ #defineSafe_delete (P) if (p) {[P release], p = nil;} $ #defineSafe_release (x) [x Release];x=nil - //----------------------Memory-related---------------------------- - the //----------------------Pictures related to---------------------------- - //reading Local picturesWuyi #defineLoadImage (File,ext) [UIImage imagewithcontentsoffile:[[nsbundle mainbundle]pathforresource:file OfType:ext] the //Defining UIImage Objects - #

As shown below we open the EXCEL2007 worksheet and click the Circle in the upper-left corner as shown below Then we click on "Excel Options" in the Open interface. Okay, when we open it, we'll hit the "Trust Center" effect as shown below. Click on the "Trust Center Settings" option to open the entry, the effect shown below Click the "Macro Settings" option to open the entry details as shown below Click "Enable

CLEAR: GT_FIELDCAT,GS_FIELDCAT.DATA: LI_POS type I,LI_POS2 type I.Define fieldcat.ADD 1 TO LI_POS.GS_FIELDCAT-EDIT = 1.GS_FIELDCAT-LZERO = 2. "front limit 0GS_FIELDCAT-NO_ZERO = 3. "remove the front limit 0GS_FIELDCAT-INTTYPE = 4. "portable typeGS_FIELDCAT-CHECKBOX = 5. "multi-choice boxGS_FIELDCAT-FIELDNAME = 6. "column nameGS_FIELDCAT-REF_FIELDNAME = 7. "parameter field nameGS_FIELDCAT-SELTEXT_L = 8. "Field nameGS_FIELDCAT-COL_POS = LI_POS. "loca

Book inventory plays an important key business data for warehouse management operations in books. Development at any age now promotes blood circulation in books, book types and update speed are just as fast rising.In order to ensure a foothold in the book industry, to ensure the correct purchase and inventory control and delivery. In order to avoid the backlog of

IOS Address Book programming, listening for system address book changes, and ios address book Listen for address book changes The client code must be implemented as follows: /* Remove the registration function */-(void) dealloc {ABAddressBookUnregisterExternalChangeCallback (_ addressBook, ContactsChangeCallback, nil)

program.There are some tasks that cannot be implemented with functions at all, but are well-defined with macros. For example, parameter types cannot be passed as arguments to a function, but they can be passed to a macro with parameters.Look at the following example:#define MALLOC (n, type) ((type *) malloc ((n) * sizeof (type))With this macro, we can assign a space to any type we specify and return a poin

Knowledge Points:1. struct structs2.typedef keywords3. Definition of macros4. The difference between a macro and a function5. File inclusion and multi-file compilation6. Conditional compilation===========================Structural bodyThink: If you now want to save a student's information, name, height, age, address, how to saveChar name[64];float height;int age;Char addr[64];1. What is struct structstruct refers to a data structure, which is a kind o

When there is too much code in your code, it is especially inconvenient to read the code, and you need to use a newline character "\". Be aware of two points when using line breaks: The 1.c compiler is based on ";" To determine if it is a statement, so as long as it's not wrapped in parentheses, it's OK. 2. Do not put the space in the middle. line wrap problem when string constants are definedIf we place a backslash at the end of a line of code, the C language compiler ignores line breaks at t

following example:#define MALLOC (n, type) \((Type *) malloc ((n) * sizeof (type)))With this macro, we can assign a space to any type we specify and return a pointer to that space. We can look at the exact working process of this macro:int *ptr;ptr = MALLOC (5, int);Expand this macro to the following result:PTR = (int *) malloc ((5) * sizeof (int));This example is one of the classic applications of