Like normal arrays of integer, floats etc which have
elements of type integer, float respectively, array of structures is nothing
but a collection of structures. It means elements of array will be structures
not normal type ( integer, float etc.).
Consider following example:
#include<stdio.h>
struct student{
int rollno;
float marks;
};
int
main(){
struct student s1;
s1.rollno=12;
s1.marks=92.5;
printf("\nStudent 1 Details\n");
printf("\nRoll No:%d",s1.rollno);
printf("\nMarks:%.2f\n",s1.marks);
return 0;
}
In
above program, we have declared one structure variable s1 for one student. What
if we want to store roll no and marks of 40 students of a class? We have two
options either we declare 40 structure variables (s1 to s40) or simply create
an array of structures of size 40 as explained in below program:
#include<stdio.h>
struct student{
int rollno;
float marks;
};
int
main(){
struct student s[5];
int i;
printf("\nEnter Students
Details\n");
for(i=0;i<5;i++){
printf("\nEnter Roll No and marks
of student %d\n",i+1);
scanf("%d",&s[i].rollno);
scanf("%f",&s[i].marks);
}
printf("\nStudents Details\n");
for(i=0;i<5;i++){
printf("\nRoll No and marks of
student %d are %d and %f respectively\n",i+1,s[i].rollno,s[i].marks);
}
return 0;
}
Output:
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