Answer / r. kumaran

Make array of values and return the array address as long.
Now using pointer traverse through the value.

Answer / prasanta maiti

Make array of values and return the array address as long.
simple example:
void main()
{
int a[10],i,n;
int *new_value_array;
printf("\n Enter how many number you want to enter? ");
scanf("%d",&n);
for(i=0;i<n;i++)
sacnf("%d",&a[i]);
printf("\n old value of the array is:");
for(i=0;i<n;i++)
printf("\t%d",a[i]);
new_value_array = array_modify(a,n);
printf("\n new value of the array is: \n");
for(i=0;i<n;i++)
printf("\t%d",*(new_value_array+i));
getch();
}
int *array_modify(int a[10],int n)
{
int i;
for(i=0;i<n;i++)
a[i]=a[i]*4;
return(a);
}

Answer / shruti

Multiple values can be returned from a function,
using the call by refrance method.

in this method, we pass pointers as the argument to the
funtion..

Answer / saurabh

#include<stdio.h>
#include<stdlib.h>
#include<string.h>

typedef struct
{
int a;
int b;
}Mystruct;

Mystruct myfun();

int main()
{
Mystruct ms2;
ms2 = myfun();
printf("val1: %d val2: %d",ms2.a,ms2.b);
return 0;
}

Mystruct myfun()
{
int a,b;
Mystruct ms;

a = 10;
b = 20;
ms.a=a;
ms.b=b;

return(ms);
}

Answer / manjunath sudnye

Just Make Array Of Pointer For Any Data Type And Return The
Base Address Of Thgat Pointer.
e.g
int *Ptr[5]={1,2,3,4,5};
//now see you can use 5 pointers for manupulation the
valuesand can return it by.
return Ptr;

Answer / j.nithya

we can return multiple values from a function by using pointer.... Just store your multiple values which you want to return and return the base address......Store the values in the array and return the base address of the array.

Answer / splurgeop

you can return multiple values from the function by using
mechanism called "call-by-reference".
for example:

void main()
{
int area,*circumference;
area=function(area,circumference);
cout<<"the area is "<<area;
cout<<"the circumference is"<<circumference;
}
int function(int a,int *b)
{
a=12;
int temp=a*3;
b=&temp;
return a;
}

// this is just an example............


// you can also use array and return the adress of the
array in the main and can use to traverse the entire array
and return multiple values from function.

main() { char *p = “ayqm”; char c; c = ++*p++; printf(“%c”,c); }

1 Answers  

Give a oneline C expression to test whether a number is a power of 2?

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# include<stdio.h> aaa() { printf("hi"); } bbb(){ printf("hello"); } ccc(){ printf("bye"); } main() { int (*ptr[3])(); ptr[0]=aaa; ptr[1]=bbb; ptr[2]=ccc; ptr[2](); }

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Print an integer using only putchar. Try doing it without using extra storage.

2 Answers