ChangeStructVal, C (gcc)

ChangeStructVal

//gcc 7.4.0
//ChangeStructVal: Swapping two structures
//this code is created by Rezaul Hoque on March 25,2022;contact: jewelmrh@yahoo.com,Dhaka, Bangladesh
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning; 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct example {
int a;
char ch[30];
double d;
}var1, var2;
void swap(struct example*,struct example*);
void input();
void display ();
void swap(struct example* var1,struct example* var2){
 struct example t;

t=*var1;
*var1=*var2;
*var2=t;
}
void input(){
var1.a=10;
 strcpy(var1.ch,"hi"); 
var1.d=123;
var2.a=20;
strcpy(var2.ch,"hello");
var2.d=456;
}
void display (){
printf("var1:\n");
printf("a: %d\t",var1.a);
printf("ch: %s\t",var1.ch);
printf("d: %0.2f\n",var1.d);
printf("var2: \n");
printf("a: %d\t",var2.a);
printf("ch: %s\t",var2.ch);
printf("d: %0.2f\t",var2.d);
}
int main(){
input();
printf ("Before swap:\n");
display();
swap(&var1,&var2);
printf("After swap:\n");
display ();
return 0;
}


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