A

bhimarao

• Nov 8th, 2005

you can instantiat a template in two ways. 1. Implicit instantiation and 2. Explicit Instantion. implicit instatanitioan can be done by the following ways:template <class T>class A{public: A(){}...

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vidhya165

 Profile Answers by vidhya165 Questions by vidhya165

• Feb 8th, 2006

different languages compared with c++:c, java, perl, python, rexx and tcllanguages using oops concept:c++ , java and c#

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ranjith_14r

 Profile Answers by ranjith_14r Questions by ranjith_14r

• Feb 26th, 2006

Its just by using new and delete operators which will allocate at runtime as in C++In C,v hav to use malloc,free operators .

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pramay

 Profile Answers by pramay Questions by pramay

• Mar 10th, 2006

Pass By Value example:The function receives a copy of the variable. This local copy has scope, that is, exists only within the function. Any changes to the variable made in the function are not passed...

rahultripathi

• Sep 24th, 2005

There  is major defference between these three are when we want to avoid making the copy of variable and we want to change value of actual argument on calling function. there are we use passing by pointer,passing the reference. We can not perform arithmentic operation on reference.

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MOHIT GONDULEY

• Apr 20th, 2006

In case of Array , the ArrayName is Nothing but a Base Address, when we use [] operator , it treats leftmostvalue as a base address and rightside value as an offset so it adds BaseAddress+Offset and g...

paulson paul chambakottukudyil

• Apr 12th, 2006

Array name is a constant pointer pointing to the base address(address of the first byte where the array begin) of the memory allocated. When you use arr[i], the compiler manipulates it as *(arr + i). ...

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mohit12379

 Profile Answers by mohit12379 Questions by mohit12379

• Apr 20th, 2006

Run-time type information (RTTI) is a mechanism that allows the type of an object to be determined during program execution. RTTI was added to the C++ language because many vendors of class libraries ...

A

• Jan 28th, 2006

In case of Virtual function we are responsible for deciding the function at run time. Its our logic that reflects and no one does any thing.Where as in case of RTTI TYPE is found of object. We dont do any thing for that. We simply use that.

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bappa

• Jun 5th, 2006

Constructor is initialized the data members....in the above case no data members r there in the class.....so....i think compiler call default constructor but it does nothing...

vidhya165

 Profile Answers by vidhya165 Questions by vidhya165

• Jan 30th, 2006

When a c++ program is compiled and executed the constructor is invoked first. if a constructor is not declared or defined by the user then the compiler invokes the default constructor.

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DaisyWheel

• Jul 25th, 2006

To avoid memmory leaks you should use smart pointers.

Guest

• Jul 17th, 2006

When dynamic memory allocation is used extensively, memory leak may occur.It happens when first memory block is not deleted . However, the address is lost because the pointer contains the address of s...

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jay

• Sep 17th, 2006

In general, volatile keyword signals compiler that the declared variable should not be optimized by any ways (e.g. it should not be cached, kept in registers etc but anytime it's used - it should be r...

minli

• Apr 9th, 2006

(P876 from textbook C++ How To Program:)The volatile type qualifier is applied to a definition of a variable that may be altered from outside the program (i.e., the variable is not completely under th...

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aparna

• Oct 11th, 2006

The code mentioned would give errors while compiling. But when i have done some minor modifications to successfully compile the code, I was surprised to c that this code works fine.Later i had to come...

jayq

• Sep 17th, 2006

The program you supplied has many type'o's so it will output only compile time errors.However if you fix the syntax, there'll be no controversy in this source : it ALWAYS outputs : its in main program...

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James Hare

• Oct 20th, 2006

You CAN in SOME compilers, but it should be noted that according to Stroustrup onlyint main()and its argc,argv cousins are valid declarations of main according to the standard.

Akif

• May 3rd, 2006

hiiiiiiiiiiiiiiiits possible u make ur main function int float char its depend what u return if u return char then ur main function char main()

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vishwa

• Nov 16th, 2006

Yes, Mail can be overriden, but not overlaoded

Me

• Oct 19th, 2006

I believe that you may be able to override main (I haven't actually tried though..). I don't see why you'd get any linker errors if you re-def the entry point as a linker switch...Thoughts?Anybody have time to try? =D

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sravan

• Nov 18th, 2006

a 3-d array is collection 2-d arrays as rows.ex: a[2][3][4] means 'a' contains two 2-d arrays of each size [3][4].first subscript 2 indicates that 'a' contains two arrays which have 3-rows and 4-coloumns.

hanuman

• Nov 13th, 2006

let us take an example     main(){int a[2][2][2];int i,j,k;for(i=0;i<2;i++)  for(j=0;j<2;j++)      for(k=0;k<2;k++)    &n...

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kalayama

 Profile Answers by kalayama Questions by kalayama

• Dec 5th, 2006

Enum is not an operator. It is a datatype. Hence it can NOT be overloaded as an operator.You can define operations on enum datatypes and Overload operators for perfoming operations using enum though.I...

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kalayama

 Profile Answers by kalayama Questions by kalayama

• Dec 5th, 2006

A static array is an array with fixed number of dimentions and each dimention will have fixed length. You can not change the dimentions of the Static array during runtime.ex: int arr[10][20] It has Tw...

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kalayama

 Profile Answers by kalayama Questions by kalayama

• Dec 5th, 2006

Well, the static variable should not be accessed from outside the file in hich it is defined. That's how static is defined.The intended purpose of static is to make the variable "invisible" to other programs.Hence you must use extern if you want to access it across files.Cheers,Kalayama

Arun

• Nov 30th, 2006

Hi,  We can't able to use more than one storage class specifier in same variable.Regards,ARUN

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(In relation with Windows Programming using VC++)

piyush023

 Profile Answers by piyush023 Questions by piyush023

• Dec 26th, 2006

What is psychic windows? Explain.

pawan

• Jul 15th, 2006

Need information about psychic window for exam.

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praveennext

 Profile Answers by praveennext Questions by praveennext

• Jan 3rd, 2007

depends on the requirement. if you got fixed no of arguments like,sum(int, int)sum(float, float) .. go for Templates.If you have variable arguments and you know the data types, then make use of va_lis...

satyam

• Dec 18th, 2006

To some extent this can be achieved by using default arguments for the func. But this also depends what all parameters you need to pass in different cases.

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Guest

• Jan 5th, 2007

This is a trick question. Should you allocate memory using malloc or new is a question that is only pertinent to C++. So if you allocate memory using malloc in C++ then you should be using free to dea...

Nihar

• Sep 18th, 2006

Yes , you can do it. But you should not do it. This is "Bad De-allocation" a security flaw. The way ?new? allocates and Delete ?de-allocates? are completely different from malloc and free. Program will show abnormal behavior it has been observed.

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Ashish

• Jan 7th, 2007

include<iostream>#include<fstream>using namespace std;int main(){             fstream *obj = new fstream();    &n...

Jayashree

• Jul 26th, 2006

#include "stdafx.h"#include "string.h"#include "process.h"int main(int argc, char* argv[]){ char cmd[125]; strcpy(cmd, "type "); strcat(cmd, __FILE__); system(cmd); return 0;}

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