Functions interview questions (Part2)

• Can we extend scope of a static variable? How?

• What is the result of recursive main function? If we are using auto variable.

• How many return statements are possible to place in a function?

• Can we place a return statement? If function return type is void.

• Can we return the value? If function return type is void.

• Can we collect return vale from void function?

• By using function return type how many values can return?

• How to collect multiple values from a function?

• What dangling pointer?

• What is function pointer?

• Library functions implementations are available in which files?

• What is the role of header files in c-language

• Can Header files are provide implementation of predefined library functions?

• What is the difference in between #include   <filename.h>  and #include  "filename.h"

• Can header files are compiled or not?

• Can header file code pass for compilation?

• What is the difference b/w int main() and void main()?

•  What are the return values are valid from main() ?

• Can we write a c program without using  main ()?

• Can we run a c-program without using main()?

• What kind of applications doesn't require main()?

• What is the use of calling conversion?

• Any difference is there in following statements

1. return  10+20;  
2. return (10+20);  

• What is the default return type and parameter type of a function?

• What is the difference in following sentence

• Function header

• Function declaration

• Function declaratory

• Function calling