How to make function

**Rahul11** · 06-03-2021

I've written program that store numbers from user

Code:

#include<stdio.h>

int main (void)
{
    int i, N;
    
    printf(" size of numbers: " );
    scanf("%d",&N);                                  
    
    int Number[N];                            
        
    
    for(i=0; i<N; i++)                               
    {
        printf("print Number : ", Number[i]);
        scanf("%d",&Number[i]);                   
    }
    
    
    return 0;


}

size of numbers: 4
print Number : 1
print Number : 2
print Number : 3
print Number : 4

How to make function that store numbers on each function call. so whenever I call the I'll get the updated value of numbers.

How to make a function ? What I need to pass into function from main function ?

**Salem** · 06-04-2021

You could start with this idea.

Code:

#include<stdio.h>

void function(int N, int Number[])
{
    for(int i=0; i<N; i++)                               
    {
        printf("print Number : ", Number[i]);
        scanf("%d",&Number[i]);                   
    }
}
 
int main (void)
{
    int i, N;
     
    printf(" size of numbers: " );
    scanf("%d",&N);                                  
     
    int Number[N];                            
         
    function(N,Number); 
     
    return 0;
}

**Rahul11** · 06-04-2021

Originally Posted by Salem

You could start with this idea.

Thank you you're idea is very useful.

I've written code that can store N numbers in array and It can remove any number from array

I don't want to store and remove number in array every time

I've decided to use function.

when I call to function1 It should be store numbers
when I call to function2 It should be remove requested number

Code:

#include<stdio.h>

int main (void)
{
    int i, N, R;
    
    printf("size of numbers: " );
    scanf("%d",&N);                                  
    
    int Number[N];                            
        
    
    for(i=0; i<N; i++)                               
    {
        printf("print Number : ", Number[i]);
        scanf("%d",&Number[i]);                   
    }
    
	printf("Remove number : " );
    scanf("%d",&R);
    
	for(i=R; i<N; i++)                               
    {
		Number[i] = Number[ i + 1];         
                          
    }
	
	for(i=0; i< N-1; i++)                               
    {
        printf(" %d  ", Number[i]);
        
    }


    return 0;




}

I've to pass the number that I want to remove number. I don't understand how to implement function that remove number from array.

**Structure** · 06-04-2021

implement function that remove number from array.

Code:

#include <stdio.h>

#define maxSize 64

int number[maxSize];

void display() {
    for (int i=0; i<maxSize; i++) {
        if (number[i] != 0) {
            printf( "%i, ", number[i] );
        }
    }
    printf( "\n" );
}

void add(int newNumber) {
    for (int i=0; i<maxSize; i++) {
        if (number[i] == 0) {
            number[i] = newNumber;
            break;
        }
    }
}

void del(int oldNumber) {
    for (int i=0; i<maxSize; i++) {
        if (number[i] == oldNumber) {
            number[i] = 0;
            break;
        }
    }
}

int main () {
    
    add( 5 );
    add( 7 );
    add( 5 );
    add( 10 );
    add( 5 );
    display();

    del( 7 );
    display();

    printf( "\n" );
    return 0;
}

**Salem** · 06-04-2021

A bit like that, but without using any global variables.

Thread: How to make function

Thread Tools

Search Thread

Display

How to make function

Similar Threads

Do C compliers make "frequently called function" an inline function automatically?

Can I use std::bind to make function pointers instead of std::function objects ?

how can i make a gotoxy() function in c

make function?

How to make a function and call it?

Tags for this Thread