multiple use definition

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,

/Home/TACE/openav/source/seamlessmessage/cpaoflt. O: In function 'cpaoflt: get_m_strprmair () const ':Cpaoflt. cpp :(. Text + 0x0): Multiple definition of 'cpaoflt: get_m_strprmair () const'/Home/TACE/openav/source/seamlessmessage/cpaoflt. O:

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

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

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

When using the GCC compiler, the program was able to compile, but the result was problematic, I looked up a lot of places, or I didn't know where the problem was. It was later discovered that a variable was not initialized. I felt that when using VS,

When compiling the program, there is a problem, take some time to record:After creating a class in Qt, it is generally necessary to declare the variables and functions in the. h file, and then define the functions in the corresponding. cpp file,

OC-class definition and oc-DefinitionWe have already introduced a program HelloWorld: Keep in OC. The biggest difference between OC and C is that it has the Object-Oriented function. When it comes to object-oriented, we have to talk about the class

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

One.#define是C语言中提供的宏定义命令, the main purpose is to provide programmers with certain convenience in programming, and to a certain extent, improve the efficiency of the program, but students often do not understand the nature of the command in learning,