structToFunctionByPointer.c

#include <stdio.h>

struct student{
	char firstName[30];
	char lastName[30];
	int birthYear;
	double aveGrade;
};
void printStudent(struct student);
void readStudent(struct student *studptr);
int main(void) {
   //! showMemory(start=65520)
    struct student me;
    readStudent(&me);
    printStudent(me);
	return 0;
}

void readStudent(struct student *studptr) {
    printf("\nEnter a new student record: \n");
    printf("First name: ");
    scanf("%s", (*studptr).firstName); // equivalent to scanf("%s", studptr->firstname)
    printf("Last name: ");
    scanf("%s", (*studptr).lastName);  //scanf("%s", studptr->lastname)
    printf("Birth year: ");
    scanf("%d", &(*studptr).birthYear);  // scanf("%d", &studptr->birthYear)
    printf("Average grade: ");
    scanf("%lf", &(*studptr).aveGrade);  // scanf("%d", &studptr->aveGrade)
}

void printStudent(struct student stud) {
    printf("Name: %s %s\n", stud.firstName, stud.lastName);
	printf("Year of birth: %d\n",stud.birthYear);
	printf("Average grade: %.2lf\n",stud.aveGrade);
}