Variable length argument in C language

  • Variable length arguments is an advanced concept in C language offered by c99 standard. In c89 standard, fixed arguments only can be passed to the functions.
  • When a function gets number of arguments that changes at run time, we can go for variable length arguments.
  • It is denoted as … (3 dots)
  • stdarg.h header file should be included to make use of variable length argument functions.

Example program for variable length arguments in C Language:


The value from first function call = 5
The value from second function call= 14
       In the above program, function “add” is called twice. But, number of arguments passed to the function gets varies for each. So, 3 dots (…) are mentioned for function ‘add” that indicates that this function will get any number of arguments at run time. appreciates your contribution please mail us the questions you have to so that it will be useful to our job search community

No comments: