Interview Question
Country: United States
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Well, I am just gonna give it a try. Expect smart comments:
#include<stdio.h> #include<time.h>//for another implementation..! #include<signal.h> #define wait_sec 1 void run_loop(); void myHandler_1(int ); void myHandler_1(int ); int main() { run_loop(); } void run_loop() { static int print_cal = 1; //initialized to 1; as question is prompting.. while(1) { signal(SIGINT, myHandler_1); sleep(wait_sec); printf("%d", print_val); ++print_val; } } void myHandler_1(int sig) { signal(sig, SIG_IGN); pause(); signal(SIGTSTP, myHandler_2); } void myHandler_2(int sig) { signal(sig, SIG_IGN); run_loop(); }PS: This is very rough sketch(I have not even compiled the code). So there is LOT of scope for improvement.
Also, this is machine + OS dependent code.
Another implementation that i can think of is
/**** now = clock(); while(clock() - now < 1); printf("%d", print_val); print_val++; ***/And yes, have a glace at includes again.. may be dos.h is needed..
- Anonymous July 01, 2012