real constant in c

ObjectiveA few days ago the woman ticket asked me a Ali's face question, is about the C + + language const constant, in fact, she mentioned that I know the point of inspection: it is certain that the const constant memory is not allocated in the

NO1.Where is Chang in the class file? My previous article "schematic diagram of Java Virtual machine" 1, class file basic organizational structure has mentioned the class file structure, in the class file, after the magic number, the

The following code uses the platform Windows 64bits+vs2012.The following concepts are often encountered when programming in C + +: constants, literal constants, symbolic constants, literal constants, constant variables, string constants, and

Constant folding ConceptThe effect on a constant folding surface is the same as the macro substitution, except that "the effect is the same", and the real difference between the two is that the macro is a character constant, after the precompiled

IntroductionIn one of my previous articles [ThoughtWorks Code Challenge--fizzbuzzwhizz Game General High Speed (C & C + +)] It was mentioned that the compiler was optimized to handle the division of the divisor as a constant, sorted out today, One

Online about the string and the article too much, many smattering writers are misleading the public, I am also deeply affected by it, until today read this article (http://www.wtoutiao.com/a/1023451.html), only to brush the layers of fog, found that

Using pointers or applications as parameters to pass by application can reduce system overhead. Because if a parameter is a large data object and is directly used as a parameterCopyOne copy is used as a function parameter, which consumes more system

I. Usage of typedef: ①Define a type of Alias, not just a simple macro replacement. It can be used to declare multiple objects of the pointer type at the same time. Trap: typedef char * tchar; Tchar Pa, PB; // Pa and Pb are pointer types. # Define

1. When passing a pointer, we can use the pointer to modify the content it points externally. However, it is impossible to modify the object pointed to by the external pointer. For example, if an external pointer is passed to the function to

1. When passing a pointer, we can use the pointer to modify the content it points externally. However, it is impossible to modify the object pointed to by the external pointer. For example, if an external pointer is passed to the function to