If i wish a local to "die" before the close} of the scope, C/C++ Programming

Assignment Help:

What if I wish a local to "die" before the close} of the scope wherein it was created? Can I call a destructor on a local if I want to?

Related Discussions:- If i wish a local to "die" before the close} of the scope

Implement binary heap in c++?, A:BinaryHeap.h ------------ #ifndef BI...

A:BinaryHeap.h ------------ #ifndef BINARY_HEAP_H_ #define BINARY_HEAP_H_ #include "dsexceptions.h" #include "vector.h" // BinaryHeap class // CONSTRUCTION: wi

Pointers, In this sub-task will you implement three functions for the final...

In this sub-task will you implement three functions for the final three function prototypes that will do exactly the same as the three functions that you have just written. This ti

C++, superposition of two waves

superposition of two waves

Calculate the area of circle using c program, Calculate the area of circle ...

Calculate the area of circle using c program: const float Pi = 3.1415926; inline float area(const float r) {return Pi * r * r;} main() { float radius;

Mat lab programming, MAT LAB programming Project Description: Just fo...

MAT LAB programming Project Description: Just for who are PROFESSIONAL IN MATLAB i have simulation and i would like to simulate the equation in ,and test the all simulatio

Why php is sometimes called as embedded scripting language, Why PHP is some...

Why PHP is sometimes called as embedded scripting language? PHP is a high level language that is used to allow users to write and understand it in human readable form and also

C programming language, write an algorithm that reads a postive integer n a...

write an algorithm that reads a postive integer n and then finds and prints the sum of all integers between 1 and n (inclusive) that are disvisible by 7. please write this using c

Board coloring, in this problem you are given a board in which some of the ...

in this problem you are given a board in which some of the elements are placed as shown in below diagram.each element represent a color.fill the other element in the board,such tha

Testvita, program

program

Type compatibility, Define T y pe c o m p a t i b i li t y? ...

Define T y pe c o m p a t i b i li t y? T o a s s i g n i n t t o s m a l l i n t t h e v a r i a b l e should b e

3/15/2013 5:25:26 AM What if I wish a local to "die" before the close} of the scope wherein it was created? Can I call a destructor on a local if I want to? A: No Imagine the (desirable) side effect of destructing a local File object is to close the File. Suppose now you have an object f of a class File and you wish File f to be closed before the end of the scope (that means }) of the scope of object f: void someCode() { File f; ...insert code that must execute while f is still open... We wish the side-effect of f''s destructor here! ...insert code which should execute after f is closed... } There is a simple solution to this dilemma. However in the mean time, remember: Do not call the destructor explicitly!

3/15/2013 5:25:26 AM

What if I wish a local to "die" before the close} of the scope wherein it was created? Can I call a destructor on a local if I want to?

A: No

Imagine the (desirable) side effect of destructing a local File object is to close the File. Suppose now you have an object f of a class File and you wish File f to be closed before the end of the scope (that means }) of the scope of object f:

void someCode()

{

File f;

...insert code that must execute while f is still open... We wish the side-effect of f''s destructor here!

...insert code which should execute after f is closed...

}

There is a simple solution to this dilemma. However in the mean time, remember: Do not call the destructor explicitly!

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages