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How to pass entire structure as an argument to function in C language?
Passing entire structure as an argument to function −
Name of the structure variable is given as argument in function call.
It is collected in another structure variable in function header.
Disadvantage
A copy of the entire structure is created again wasting memory
Program
Following program demonstrates passing an entire structure as an argument to function −
#include<stdio.h>
//Declaring structure//
struct add{
int var1;
int var2;
}a;
//Declaring and returning Function//
void show(struct add a){
//Declaring sum variable//
int sum;
//Arithmetic Operation//
sum=a.var1+a.var2;
//Printing O/p//
printf("Added value is %d",sum);
}
void main(){
//Declaring structure//
struct add a;
//Reading User I/p//
printf("Enter variable 1 = ");
scanf("%d",&a.var1);
printf("Enter variable 2 = ");
scanf("%d",&a.var2);
//Calling function//
show(a);
}Output
Enter variable 1 = 30 Enter variable 2 = 40 Added value is 70
Updated on: 09-Mar-2021
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