38 lines
963 B
C
38 lines
963 B
C
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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void init_person(Person *p,int age,char *name) {
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p->age=age;
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p->name=malloc(50*sizeof(char));
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strcpy(p->name,name);
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p->happy_birthday=happy_birthday;
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p->print_age=print_age;
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}
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Person * new_person(int age,char *name) {
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Person *tmp;
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tmp=malloc(sizeof(Person));
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init_person(tmp,age,name);
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return tmp;
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}
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//private
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void happy_birthday(Person *self) {
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printf("Happy birthday to you, happy birthday to you.\n");
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printf("Happy birthday dear %s, happy birthday to you!\n",self->name);
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self->age=self->age+1;
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}
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void print_age(Person *self) {
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if (self->age>1) {
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printf("%s is %d years old.\n",self->name,self->age);
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} else if (self->age==1) {
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printf("%s is 1 year old.\n",self->name);
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} else if (self->age==0) {
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printf("%s is a newborn.\n",self->name);
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} else {
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printf("You can't be under 0 years old!\n");
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}
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}
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