How important is c++?

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Describe the advantages of operator overloading?

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What is the use of static functions?

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What's the most powerful programming language?

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What c++ is used for?

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Read the following program carefully and write the output of the program. Explain each line of code according to given numbering. #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <errno.h> 1……………… int main (void) { pid_t pid; 2………………………… pid = fork(); 3…………………………. if (pid > 0) { int i; 4………………………… for (i = 0; i < 5; i++) { 5………………… …………… printf(" I AM VU : %d\n", i); 6………………… …………… sleep(1); } exit(0); } 7………………… ……… else if (pid == 0) { int j; for (j = 0; j < 5; j++) { 8……………………………… printf(" I have no child: %d\n", j); sleep(1); } _exit(0); } else { 9………………………………fprintf(stderr, "can't fork, error %d\n", errno); 10……………… … ………… exit (EXIT_FAILURE); } }

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Can a program run without main function?

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Explain the isa and hasa class relationships. How would you implement each?

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What is an opaque pointer?

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What is flush () in c++?

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What is the difference between Char a[ ]=”string” and char *a=”String”

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What c++ library is string in?

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