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function is a set of statements that can be executed in the part of the program.

ex: to add two nos. using function

void main()

{

int a,b,c;

printf("enter the two numbers");

scanf("%d%d",&a,&b);

add(a,b);

clear();

}

void add(int a,int b)

{

c=a+b;

printf("the sum is %d",c);

}

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The goal of the procedure is to improve valve function and blood flow by enlarging the valve opening. It is sometimes used to avoid or delay open heart surgery and valve replacement.


What statements indicate the start and end of a procedure?

A procedure is started by calling the function that represents that procedure. The function call must include any and all required arguments.The procedure ends whenever a return statement is encountered anywhere within the function body, or execution falls off the end of the function (assuming no return value is expected from the procedure), or a non-return function is invoked by the function (such as the abort() function) or an unhandled exception is thrown by the function. Apart from a non-returning function call, execution always returns to the calling code (the caller). If an unhandled exception is thrown by a function, the call stack automatically "unwinds" until a suitable exception handler is found. If no handler is found on the call stack, the global main function will unwind, terminating the program with an unhandled exception error. Hence the reason all non-trivial programs should provide a "catch-all" exception handler in the global main function.


Can a C plus plus user defined function return a value?

Absolutely. Indeed, any function (user-defined or built-in) that does not return a value is not really a function, it is simply a procedure.


What is the purpose of the keyword void in a function declaration?

when we declare any function with void,it doesnt return any value


What is the purpose of the program stack?

Its main use is to store local variables, arguments and return address each time a function is called.When your program calls a function the following happen :- The function arguments are put on the stack- The current instruction pointer is put on the stack- The program jumps to the start of the function- Space is allocated on the stack to hold local variables- The function executes- The space holding local variables is de-allocated- The instruction pointer is restored and removed from the stack (we are now leaving the function and resuming the calling procedure)- The arguments are removed from the stack

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