It tells the compiler that a variable or a function exists, even if the compiler hasn't yet seen it in the file presently being compiled. This variable or function may be distinct in another file or further down in the current file.       

 

 

Posted Date: 4/8/2013 6:07:50 AM | Location : United States

Ask an Expert

Related Discussions:- What does extern mean in a function declaration in c++, Assignment Help, Ask Question on What does extern mean in a function declaration in c++, Get Answer, Expert's Help, What does extern mean in a function declaration in c++ Discussions

Write discussion on What does extern mean in a function declaration in c++
Your posts are moderated

Write your message here..

Related Questions

Working of ordered linked list, Working Ordered linked list: • Eachint... Working Ordered linked list: • Eachinteger in the queue is stored inside of a QueueItem. The QueueItem contains the integer, and a pointer to the next item in the queue. Fo

What is union, What is Union? Intimately associated with the structure ... What is Union? Intimately associated with the structure is the union which as well contains multiple members. Unlike a structure but the members of a union share the same stora

Why shouldn''t matrix class''s interface look like an array, Why shouldn't ... Why shouldn't Matrix class's interface look like an array-of-array? A: Some people build a Matrix class that has an operator[] that returns a reference to an Array object (or po

Padovan string , .write a program that counts the number of occurrences of ... .write a program that counts the number of occurrences of the string in the n-th padovan string p(n)   program in java // aakash , suraj , prem sasi kumar kamaraj college

Boardcoloring, code for boardcoloring code for boardcoloring

Database, write a c++ program to update employee records write a c++ program to update employee records

C language, in a program for what purpose print f and scan f is used in a program for what purpose print f and scan f is used

Input data analysis, Create a class Word, representing a word. Two words sh... Create a class Word, representing a word. Two words should be considered equal if they consist of the same sequence of letters and we consider upper case and lower case as equal. F

Tree, Ask question #M i want to undersatnd about tree structures like node ... Ask question #M i want to undersatnd about tree structures like node leaf etcinimum 100 words accepted#

Explain object-oriented programming, Explain Object-oriented programming ... Explain Object-oriented programming Object-oriented programming (OOP) attempts to meet these requirements, providing methods for managing enormous complexity, achieving reuse o