Materi Fungsi-Fungsi Dalam Bahasa C++

The function is a block of program code designed to perform specific tasks.

Function (Function)

Execution of a program starting from the function main ()

-Programs are usually designed in several sub-programs

called function (function)

-When the program is executed and met with

statement to call a function of the execution

program will switch to that function. after the function

completed its execution, the statement continued right on

section where the function was invoked 

example

#include <iostream>

using namespace std;

void echo(const string str){

cout << str << endl;

}

int main(){

string kata;

cout << "Ketik sebuah kata: ";

cin >> kata;

echo(kata);

} 

• 
  -Function: return Statement

When a return statement is executed, the execution of a

function will stop and the value will be returned to the

position where the function is called

int maximum (int x, int y) {

if (x> y) return x;

else return y;

} Called-by-value

or

int maximum (int x, int y) {

return ((x> y)? x: y);

}

Function: Called-by-Value

# include <iostream>

using namespace std;

cumulative int (int n) {

int sum = 0;

for (; n> 0; - n)

sum + = n;

return sum;

}

int main () {

int n = 3, sum;

cout << n << endl;

cumulative sum = (n);

cout << n << ":" << sum << endl;

}

Recursive functions:

Recursive functions (recursive function) calls itself

itself in the body of the. Recursive function always has

termination section to stop the recursive process.

long factorial (int n) {

if (n <= 1)

return;

else

return n * factorial (n - 1);

Recursive Functions: Advanced

void countdown (unsigned int n) {

if (n <= 0)

cout << "BLAST OFF" << endl;

else {

cout << "COUNT:" << n << endl;

countdown (n - 1);

}

}

INDONESIAN VERSION

Fungsi merupakan blok dari kode program yang dirancang untuk melaksanakan tugas khusus.

Fungsi (Function):

Eksekusi sebuah program dimulai dari fungsi main()

-Program biasanya dirancang dalam beberapa sub program

yang disebut fungsi (function)

-Ketika program dieksekusi dan bertemu dengan

pernyataan memanggil sebuah fungsi maka eksekusi

program akan beralih ke fungsi tersebut. Setelah fungsi

selesai dieksekusi, pernyataan dilanjutkan tepat pada

bagian dimana fungsi itu dipanggil

Contoh

#include <iostream>

using namespace std;

void echo(const string str){

cout << str << endl;

}

int main(){

string kata;

cout << "Ketik sebuah kata: ";

cin >> kata;

echo(kata);

} 

Fungsi: Pernyataan return

- Ketika pernyataan return dieksekusi, eksekusi sebuah

fungsi akan berhenti dan nilai akan dikembalikan ke

posisi dimana fungsi tersebut dipanggil

int maximum(int x, int y){

if (x > y) return x;

else return y;

} called-by-value

atau

int maximum(int x, int y){

return ((x > y)? x : y);

}

Fungsi: Called-by-Value

#include <iostream>

using namespace std;

int komulatif(int n){

int sum = 0;

for ( ; n > 0; --n)

sum += n;

return sum;

}

int main(){

int n = 3, sum;

cout << n << endl;

sum = komulatif(n);

cout << n << " : " << sum << endl;

}

Fungsi Rekursif

Fungsi rekursif (recursive function) memanggil dirinya

sendiri dalam bagian body. Fungsi rekursif selalu memiliki

bagian terminasi untuk menghentikan proses rekursif.

long factorial(int n){

if (n <= 1)

return;

else

return n * factorial(n - 1);

}

Fungsi Rekursif: Lanjutan

void countdown(unsigned int n){

if (n <= 0)

cout << "BLAST OFF" << endl;

else {

cout << "COUNT: " << n << endl;

countdown(n - 1);

}

}