pragma location

Each implementation of C and C ++ supports some unique features for its host or operating system. For example, some programs must precisely control the storage area where data is stored, or control the way a specific function accepts parameters. #

Original link: http://www.cnblogs.com/s7vens/archive/2012/03/06/2382236.htmlPack aligns the specified byte boundaries to the members of a struct, union, class, and so on. Unlike the/ZP switch for compilation options, it is not for the entire project,

#pragma comment ( comment-type [, "commentstring"]) The macro places a comment into the object file or executable file.Comment-typeis a predefined identifier that specifies the type of comment, which should

Pack is a struct, union, and class member alignment to specify the byte boundary. different from the/ZP switch of the compilation option (property> Configuration property> C/C ++> code generation> structure member alignment), it is not applicable to

In all preprocessing instructions, the #pragma instruction may be the most complex, and its role is to set the state of the compiler or instruct the compiler to perform certain actions. #pragma指令对每个编译器给出了一个方法, to give the host or operating system

In all preprocessing instructions, the #pragma instruction may be the most complex, and its role is to set the state of the compiler or instruct the compiler to perform certain actions. #pragma指令对每个编译器给出了一个方法, to give the host or operating system

Original link: http://blog.csdn.net/jx_kingwei/article/details/367312#pragma pre-processing instruction detailedIn all pre-processing directives, the #pragma directive may be the most complex, and its role is to set the state of the compiler or to

Original URL: http://blog.csdn.net/lizzywu/article/details/9419145 GCC warnings at each level Overrides Variable (code) level from top to bottom: Specify a variable warning int a __attribute__ ((unused)); Specifies that the variable is

Transferred from: https://www.cnblogs.com/ransn/p/5081198.htmlFirst, the conceptAlignment is related to the location of the data in memory. If the memory address of a variable is exactly the integer multiple of its length, he is called natural

What is alignment, and why you want to align it. The memory space in modern computers is divided by byte, theoretically, it seems that access to any type of variable can start at any address, but the reality is that access to a particular variable