tokenize definition

Transferred from: http://www.cnblogs.com/rocketfan/archive/2009/10/02/1577361.html 1. compilation unit: A. cc or. cpp file is used as a compilation unit to generate. O. 2. Definition and declaration of common data types, Function Definition and Declaration (class functions are the same ). Extern int X; // The variable is declared and no actual address is allocated. No actual target code is generated.Void p

which is processed by the system reference preprocessor, and the preprocessing part refers to the preprocessing commands that start with "#", which is placed outside the function, and generally placed in front of the source file, such as: command #include, Macro command #define, etc. The reasonable use of preprocessing functions can make the program more convenient to read, modify, transplant, debug, and also conducive to modular programming. This article mainly describes the following sections

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

The difference between a variable declaration and a definitionWe are in the program design, always use the definition of variables and the declaration of variables, but sometimes we are not very clear about the concept, know how it is used, but do not know how a thing, the following I will simply introduce their differences are as follows: (Hope my guidance to you benefit)There are two scenarios for declaring a variable:1, one is the need to set up st

Macro definition of C Language notes (1) Symbolic Constants Macro definition is a replacement strategy in C language, that is, using preprocessing commands # define equals a string of (lengthy) texts with a name (macro, then you can batch use Macros in the source code. In the preprocessing phase, replace the macro in the source code with the original text. For example, in the source code: #define PI 3.1

Note: (1) Environment construction: Activiti Custom process Spring Integration activiti-modeler5.16 Example (i): Environment construction(2) Create process Model: Activiti custom process Spring Integration activiti-modeler5.16 Instance (ii): Create process Model(3) Process Model list show: Activiti custom process Spring Integration activiti-modeler5.16 Instance (iii): Process Model list Show1.maven Guide Package and some of the basic spring configuration and no changes in the previous, it is sti

This example describes the Python array definition method. Share to everyone for your reference, as follows: There is no data structure for the array in Python, but the list is much like an array, such as: a=[0,1,2] At this point: a[0]=0, A[1]=1, a[[2]=2, but begs the question, that is, what if array a wants to define 0 to 999? This may be achieved by a = range (0, 1000). or omitted as a = range (1000). If you want to define a 1000 length, the ini

This example describes the Python array definition method. Share to everyone for your reference, as follows: There is no data structure for the array in Python, but the list is much like an array, such as: a=[0,1,2] At this point: a[0]=0, A[1]=1, a[[2]=2, but begs the question, that is, what if array a wants to define 0 to 999? This may be achieved by a = range (0, 1000). or omitted as a = range (1000). If you want to define a 1000 length, the initi

Learning Essentials:1, general definition of function address and typedef simplification definition;2, access to the function address;The 3,a function address is passed as the B function parameter;Functions are stored in the code area of memory, and they also have addresses. If we have a function of int test (int a), then its address is the name of the function, asArray, the name of the array is the startin

Transferred from: http://www.phpthink.cn/html/221.htmlIn complex association operations, if you want to add optional attributes to the association definition, we can take a fully defined approach. The fully defined format is: protected $_link = Array (' Associative table name 1 ' = = Array (' The table is associated with the property 1 ' = ' = ' = ' = ' = ' = ' = ', ' The table is associated with the property n ' = ') Define ', '), ' Association table

defined in define ():define({ name: "john", age : 20, sex : "femal"});Comments: This situation is not very useful, it is generally used for simple data simulation. After the module is loaded, the parameter injected in the callback function is the key-value pair object, which is:{ name: "john", age : 20, sex : "femal" }Function-DefinedIf a module does not have any dependencies, but requires a function to do the setup work, define the function in define () and pass it to define ():define(fu

This article transferred from: http://www.cnblogs.com/jaxu/p/5595451.htmlUsing MongoDB in node. JS is a mongoose. Suppose there is a definition of the following mongoose schemas:var New Mongoose. Schema ({ biz:string, name:string, tradetype:string, totalfee:number, transactionid:string, createtime: { type:date, default: Date.now }, updatetime: { Type:date, default: Date.now }}, { false});We wan

MySQL Gets the field definition for the specified table (assuming the table name is MyTable):DESCRIBE mytableGets the field definition for the specified table in MySQLServer (assuming the table name is MyTable): select syscols.name as column_name,st.name as data_type,syscomm.text as data_default,syscols.isnullable as NULLABLE from syscolumns syscolsleft join Systypes St on syscols.xusertype=st.xusertypeleft

Using MongoDB in node. JS is a mongoose.Suppose there is a definition of the following mongoose schemas:var New Mongoose. Schema ({ biz:string, name:string, tradetype:string, totalfee:number, transactionid:string, createtime: { type:date, default: Date.now }, updatetime: { Type:date, default: Date.now }}, { false});We want to save the model data without specifying the value of the createtime fi

Based on the definition of AVL tree, this paper deduces the scheme of the AVL tree rotation, which is carried out on the premise that the definition of AVL tree has been clearly known . The article focuses on the process of thinking, and does not directly give the AVL tree is how to rotate, to remind oneself later in the study to pay attention to the process of deduction. In this, I want special thanks to m

DTD can actually be seen as a template for one or more XML files. elements, Element attributes, arrangement methods/order of elements, and content that can be contained in these XML files, must comply with the definition in the DTD. Elements in the XML file, that is, the elements we create DTD can actually be seen as a template for one or more XML files. elements, Element attributes, arrangement methods/order of elements, and content that can be conta

role of externThe extern keyword basically declares that the variable has been declared in another file (declaring a global variable or function), and if a variable with extern is encountered during compilation, it will look for its definition in other modules. Note, however, that it is just a declaration rather than a definition, that is, if you want to use this variable, you only need to include the head

[Size] Create a stack segment and specify the size of the stack segment Segment name: Stack. If the size of the stack segment is not specified, the default value is 1 kb. 3. pre-defined symbols related to the definition of simplified segments The following example describes how to use predefined symbols. In the case of complete segment definition, at the beginning of the program, you need to use

Definition of common macro tag in Linux i386 + source code These macros include _ init, _ initdata, _ initfunc (), asmlinkage, entry (), and fastcall. They are defined mainly in include \ Linux \ linkage. h and include \ asm-i386 \ init. h and some other. H files. 1) _ init location: Include \ asm-i386 \ init. h Definition: # DEFINE _ init _ attribute _ (_ Section _ (". Text. init "))) Note: This identifie

Reference: skysky In this section, let's take a look at the definition statements of ABAP Oo, including classes, methods, events, attributes, and interfaces. 1.Definition class ****************************************** * Definition part ****************************************** CLASS xxx DEFINITION. *-------------