When to use “const” reference arguments in a function?
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What is the difference between global variables and static varables?
How long does it take to get good at leetcode?
What is a mutex and a critical section.Whats difference between them?How do each of them work?
List different attributes in C++?
What is virtual base class?
How would you use the functions randomize() and random()?
What are the advantages of prototyping?
What are the extraction and insertion operators in c++?
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); } }
How to give an alternate name to a namespace?
Describe friend function & its advantages.