what definition of include

C ++ File include rule constant definition To sum up, C ++'s function declaration, variable declaration, and class definition are written in the header file, while function implementation, variable definition, and class method implementation are

This article resolves the error of multiple definition of ' XX '. " for the purposes of anti-reptiles, you are not seen on the http://blog.csdn.net/zhanh1218 , certainly not the latest and most complete." "For the definition of the header file, be

The Declaration tells the compiler some information to assist the compiler in syntax analysis and avoid compiler errors. The definition is to tell the compiler to generate some code that will be used by the connector. That is, the Declaration is for

compiler compiles a program, it compiles only one source file and generates the corresponding intermediate file (for the VC, the. obj file), and then the connector unifies all intermediate files to form an executable file. The problem is that when

From: http://blog.csdn.net/suwei19870312/article/details/6665305 In some large projects, there may be dozens of basic classes, which are inevitably referenced by each other (not satisfying the inheritance relationship, but composite relationship ).

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,

1) In the text box that defines the path to the containing file, there are two important syntax for defining the path to the containing file. One is $toolkit_dir$, this syntax means that the path containing the file is under the 8051 folder of the

variable declarations and variable definitions Variable definitions: Used to allocate storage space for a variable, and to specify an initial value for a variable. In a program, a variable has and has only one definition. Variable declaration: Used

When Asp.net is used to merge cells in an Excel file, an exception is thrown: Microsoft. CSHARP. runtimebinder. runtimebinderexception: "object" does not include the definition of "get_range" in callsite. target (closure, callsite, comobject, object,

Original: http://www.cnblogs.com/GavinDai/archive/2011/10/24/2222735.htmlWe 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