Reviewing Functions
First, what is a function? A function is a self-contained unit of program code designed […]
Functions in C
Calling Multiple Functions
If you have grasped the concept of ‘calling’ a function you are prepared for a […]
Passing Values between Functions
The functions that we have used so far haven’t been very flexible. We call them […]
Call by Value
Call by value is a value passing mechanism to function in which a value is […]
Call by reference
In call-by-reference evaluation (also referred to as pass-by-reference), a function receives an implicit reference to […]
Inline Functions in C
Ordinarily, calling a function causes the computer to save its current instruction address, jump to […]
Recursion
In C, it is possible for the functions to call themselves. A function is called […]
Variable Length Arguments in C
C allows you to define functions that you can call with a variable number of […]
what printf returns
printf in C returns the number of characters that are outputted by the function. Example
sprintf function
sprintf composes a string with the same text that would be printed if format was […]
function as an argument in another function
Passing a function to another function means it passes the return value to the function. […]