How can a called function determine the number of arguments that have been passed to it?
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Write about the members that a derived class can add?
Differentiate between declaration and definition in C++?
Which field is used in c++?
What are friend classes? What are advantages of using friend classes?
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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What is the difference between public, private, and protected access?
Define the operators that can be used with a pointer.
explain the reference variable in c++?
What is the difference between while and do while loop? Explain with examples.