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What is the use of pointer in c++ with example?


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More C++ General Interview Questions

1)#include <iostream.h> int main() { int *a, *savea, i; savea = a = (int *) malloc(4 * sizeof(int)); for (i=0; i<4; i++) *a++ = 10 * i; for (i=0; i<4; i++) { printf("%d\n", *savea); savea += sizeof(int); } return 0; } 2)#include <iostream.h> int main() { int *a, *savea, i; savea = a = (int *) malloc(4 * sizeof(int)); for (i=0; i<4; i++) *a++ = 10 * i; for (i=0; i<4; i++) { printf("%d\n", *savea); savea ++; } return 0; } The output of this two programs will be different why?

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given the code segment below void main() { cout<<"my no. is"; } question is how can we get the output hai aravind my no. is 99999999999 without editig the main().

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How many standards of c++ are there?

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what is the difference between linear list linked representaion and linked representation? what is the purpose of representing the linear list in linked represention ? is it not avoiding rules of linear represention?

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What is null and void pointer?

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Discuss the possibilities related to the termination of a program before entering the mainq method?

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Describe run-time type identification?

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What is setbase c++?

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What is abstract class in c++?

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Refer to a name of class or function that is defined within a namespace?

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Explain binary search.

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What is virtual destructor ans explain its use?

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