function overloading

C/C ++ written examination, Interview Questions Summary1. Find the return value of the following function (Microsoft) Int func (X){Int countx = 0;While (X){Countx ++;X = x & (x-1 );}Return countx;} Assume x = 9999. Answer: 8 Train of Thought:

Interview Example 1: In the C ++ program, why should I add the extern "C" to call the function compiled by the C compiler "? A: function Overloading is supported in C ++ and function Overloading is not supported in C. The name of the function in the

(1) Write a function to copy the memory Void * memcpy (void * DST, const void * SRC, unsigned int Len){Register char * D;Register char * s;If (LEN = 0)Return DST;If (DST> SRC) // consider Overwriting{D = (char *) DST + len-1;S = (char *) SRC + len-1;

According to the requirements of the author of this book, I will start with the appendix exercises of this book and touch the bottom. The following are the errors: 1. Enter the if statement for bool, float, pointer variable comparison with "zero

A company's C/C ++ programmer interview questionsFavorite from http://blog.csdn.net/w3nsirFrom vchelpIt is mainly for students who graduated from the field and those who have less than one year of work experience;Hope to help everyone;Algorithm:1.

1. Similarities and Differences between C and C ++;2. Differences between C, C ++, Vc, BC, and TC;3. Try in C ++... Usage and advantages of catch keywords;4. Usage of enumeration and its difference from macros;5. Usage of const and the difference

Calling Convention determines the following:1) parameter pressure stack sequence (from right to left or from left to right)2) When a function is returned, the parameters of the called function or the called function are cleared into the stack.3)

The same statement has multiple forms, and different types have different attributes and presentation methods; polymorphism principle; polymorphism is a correspondence pointer. Implementation of Polymorphism Polymorphism: The same invocation

Description(1) The function or variable restricted by extern is of the extern type: A. extern variable declaration. For example, if the file a. c needs to reference the int v variable in B. C, you can declare externint V in A. C, and then you can

In the previous article, I wrote about the expansion of C ++ comments, input and output, and local variable descriptions, as well as the comparison between the const modifier and # define in C, I have also received help from several C ++ friends.

 Variables and functions modified by extern "C" are compiled and connected in C language. Extern not addedHow to compile C-like functions in C ++ during "C" declaration? As an object-oriented language, C ++ supports function overloading, while

Reprinted please indicate the source: http://blog.csdn.net/horkychen (Excerpt from msdn-coding techniques and programming practices) Names) Naming is most helpful for understanding the logical structure of a program. A name description is "what" is

Extern "C" is introduced to solve the problem of C ++ function overloading. When designing the C ++ language, the father of C ++ considers the compatibility with C, the introduction of extern "C" enables the use of C library functions without errors

The prospect of GP Technology -- one day after hongjunMo Huafeng Since the emergence of advanced languages, types have always been the core of languages. Almost all language features require type as a prerequisite. The type is like heaven and earth,

I. Polymorphism 1. There are two types of Polymorphism (1) polymorphism during compilation: implemented through function Overloading (2) Runtime polymorphism, implemented through virtual functions, that is, dynamic Association 2. inheritance is not

I, Char STR [] = "ABCD"; cout II, # Define Max 3 + 2 cout 3. Why should I use "extern C" when calling a function compiled by the C compiler in C ++ "? A: Extern is a keyword in C/C ++ that indicates the range (visibility) of functions and global

--------------------------------------------------------------------------------  Clause 24: exercise caution when selecting between function overload and default parameter values The reason for obfuscation between function overloading and Setting

You do not need to know about the Function calling rules (call conventions) most of the time. However, if you need cross-language programming, such as calling a DLL written by VC using Delphi, you need to know. Microsoft's VC adopts the _ cdecl

By sjyuhusun   In view of the detours and explorations I have made here, and for the purpose of reducing the detours, I will summarize the General Manager Lin of porting for your reference. I hope my predecessors will give you more advice on the

C # has been started recently. It was actually a long time ago, but you also know that when you get started with a language, the most common thing is to read books such as XX language entry. To take care of readers without programming basics, these