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What is the use of template in C++?
amandahh
- Nov 29th, 2007
With templates, you do not have to repeat the entire codes for different types.
baseersd
- Sep 18th, 2007
It makes the program more general.just take as an example,If we have written a program to find the binary sort of integers, then we can sort only integers. At some point of time i want to sort charact...
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Program in Math by C++
I have a program in Math that I can't do ,can any body help me and I'll be very grateful to him.The program is:How to use Code written in C++ to write matrices/matrix/array in Math with 4th degree by the inverse matrix solution or Cramer way to solution?Thank You.
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What is the compilation difference at the compiler level for C++, VC++ and C# ?
berezleon
- Dec 2nd, 2007
Chandima, .NET compiles code into MSIL - Microsoft Intermediate Language, not CIL - it's not known )
Chandima Prematillake
- Sep 23rd, 2007
VC++ is the Microsoft's implementation of C++. Each C++ compiler might compile the code differently. However, all C++ compilers compiles C++ code into Native code. VC++ do the same. C# however, co...
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What is the difference between char str, char *str and char* str ?Explain the meaning of char* or int* ?
berezleon
- Dec 2nd, 2007
Char * str can't store anything --it's just a pointer to a char. If you cout or printf(...) char *str it prints till it finds termination char '';
bornToLose
- Sep 22nd, 2007
Char* is pointer to char which store address of char variableIntI is a pointer to int which store the address of int variable.
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What is difference between visual c++ & ANSI c++ ?
Susil Kumar
- Jan 5th, 2008
Don't get confused with the words visual and ANSI. Follow this.* Visual C++ is an IDE for developing GUI real time applications using C++. Visual C++ deals with more complex applications* ANSI C++...
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What is the difference between obeject oriented programing langauge and structure oriented programing langauge
potipireddi
- Jan 7th, 2008
Structured Programming Language follows Top Down approach where as Object oriented programming language follows Bottum Up approach.
Basveshwar
- Oct 10th, 2007
In structured programing data is not more important it starts the process1) Start data2) How to access3) DataWhile in object oriented data is more importantdataHow to access start data
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What is framework in C++?A framework is a collection of classes and applications, libraries of SDKs and APIs to help the different components all work together
wanttochange
- Jan 10th, 2008
This question seems to be misterious...anyway......we have some library that we use for our workfor sdk we use win32apifor mfc we have wraped the win32api in to the classes wat frame work u taking about?can u clear the q?
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What are the advantages of using Doc/View or SDI over DialogBox
wanttochange
- Jan 10th, 2008
IN docview ..acually weuse 3 tier architecture...we seperate the implementationin data,logic,view(GUI)so that if we can change these component independently......this all is to make the design extendi...
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Design a class for car inventory . For every new car from the manufacturer there should be minimal changes to the code.
wanttochange
- Jan 10th, 2008
if you want to do minimal change always go for polymorphic classes..first find the services you need ...& designa interface class that contain all methodsvirtual....now we can have different cars....
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How can you force instantiation of a template?
A
moonlight100783
- Jan 20th, 2008
To add...When a template is specialized as above, it is mandatory to define the same. The C++ compiler will not generate a class for the specialization.
michaelpyles
- Dec 29th, 2007
You can force the instantiation of a specialization of the template by specifying a prototype somewhere in your code. For example:template <class T> class A { T x; ...
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What is an escaping variable
tehoclub
- Jan 22nd, 2008
Escaping variable uses when you want to break loop.int flag = 1; //flag is an escaping variablefor(...){ for(...) { flag = 1; ... if(..) { flag = 0; break; } } if(flag==0) break;}
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What is the diffrence between static_cast and dynamic_cast in RTTI
dynamic_cast checks for datatype at runtime but static_cast checks at compilation. Is this the only diffrence b/w them or is there anything else? at the time of programming which shud we prefer to call.
Sushant Kadadi
- Feb 5th, 2008
static_cast is used for all conversions that are well defined.Like float to int. double to int etc.dynamic_cast is used for type-safe downcasting. For this one must be working with a truly polymorphic...
ranjini_r
- Jan 23rd, 2008
static_casts can be used to convert parent class to child class and vice - versa but the cast is an error for "unrelated classes".static casts can also be used to convert integral types...
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What is the difference between block structured language and highly block structured language
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How to multiply a varible x (int) by 7, without using multiplication & addition ?
bapu_60
- Feb 20th, 2008
Multiplication is a costly operation,costlier than bit operations.So,it is a better practice to use bit operation that is << for multiplication and >> for divsion when you are multiplying with a factor of 2 otherwise its not suggested.
praveennext
- Jan 3rd, 2007
This can be a generic solution for x*y without using *.while(y>>=1){if(y | 1) tot+=x; x<<=1; }or,for( ; y ; y>=1, x<<=1 ) if(y | 1) tot+=x;or even stupid like, while(x--) tot+=y; ;-)May be a brain teaser, but this may eat time.
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What was the most difficult debug you have ever done?
indrajit_p
- Mar 23rd, 2008
Once there was a BIG fat bug inside my computer which had claws like ...kidding.I recently had to debug an intetioanlly bugged program in a debugging test where a function was being called recursively...
wanttochange
- Jan 10th, 2008
Can be if yr application get hanged...& you don't no even from where u should start debuging...this can be the most difficult
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Connect C++ to MS Access
How to connect C++ to MS Access?
ganeshmoorthy
- Apr 3rd, 2008
Inline functions: in exectution of normal functions compiler overhead occurs by jumping to and fro from stack to avoid this inline functions are used it executes the given functions directly wit...
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Macro and Inline function
What is the difference between macro and inline function?
gupta_pratibha
- Apr 7th, 2008
Compiler performs return type checking, function signature before putting inline function into symbol table. But there is no type checking for Macros. So Macros are more error prone as compared to inline functions.
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Dangers of public unsigned, diamond-shaped inheritance
What is the danger of using public unsigned integers within a class?In a diamond-shaped inheritance hierarchy, how to ensure that only 1 copy of parent is created?
redleader
- Apr 16th, 2008
There are at least 2 questions here. The latter is answered but not the former.If the initial question is answered, there would be a requirement to highlight what the dangers are for both public unsigned and multiple inheritance.
ap.genius
- Apr 14th, 2008
Duplicate copies can be avoided using 'virtual' keyword while making ancestral class...The example illustrates it better:#include<iostream.h>#include<conio.h>#include<string.h&g...
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Polymorphism
What are the issue one should care implementing polymorphism.
redleader
- Apr 16th, 2008
In regards to the point of static and dynamic binding, the virtual keyword needs to be used for any functions that need to be dynamically overriden and not statically overloaded.
redleader
- Apr 16th, 2008
The question revolves around polymorphism, and not the general OOP compliance of the language.Care should be taken in regards to early static binding, and late dynamic binding.Object chopping or slici...
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C++ palindrome Code
How to check the string in one file is palindrome or not? Print how many strings in that file are palindrome?
king003
- Jun 3rd, 2008
//Ranier De Leon//June 2008#include<iostream>#include<string>#include<cctype>using namespace std;void tryAgain(int);void input();void main(){ input();}void tryAgain...
C++ Interview Questions
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