Q1) What's a spinlock ? How it is different from a mutex ? spinlock is used to provide synchronization between two processors and mutex is used for single processor environment.
Q2) What's volatile keyword in C? What does the compiler does when I declare a variable volatile ? When you declare a variable as volatile. You notify compiler to stop optimization while accessing the variable declared as volatile. when you declare a variable as volatile it will not store the variable in to some register. Every time it access the variable from memory. On Tue, Apr 12, 2011 at 1:30 PM, Decipher <ankurseth...@gmail.com> wrote: > Hey Guys, these questions were asked from me during Broadcom India > interview rounds in my college. I hope this would be useful for those > interested in this firm. > They wanted a person with good knowledge of C + Networking + Microprocessor > and project in any of these technologies would be beneficial for > the candidate. > Written test: C+ Networking + Linux Commands + Database. > Questions: > Q1) What's a spinlock ? How it is different from a mutex ? > Q2) What's volatile keyword in C? What does the compiler does when I > declare a variable volatile ? > Q3) How is NULL defined in C ? What's the difference between #define NULL > (void *)0 and #define NULL 0 . > Q4) How do you find given substring in a given string using only macros ? > Q5) How to find factorial of a no. using macros ? > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
