C Program to read and print info of a person

The program given below reads the information about a person and prints it on the screen. It uses a structure containing a pointer member name to represent the information about a person. Note that the program uses the dstr_read function.

/* Program to read and print info of a person. Uses a structure with char pointer to store person’s name */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

struct person {

char *name;        /*person’s name */

char gender;        /* M: male, F: female */

int age;

} ;

char *dstr_read();

void person_read(struct person *p);

void person_print(struct person *p);

int main()

{

    struct person p;

    person_read(&p);

    person_print(&p);

    free(p.name);

    return 0;

}

    /* read a dynamically allocated string */

   char *dstr_read()

    {

       char buf[100];

       char *str;

       gets (buf); /* read a string in buffer */

       /* allocate required memory */

       str = (char*) malloc(strlen(buf) + 1);

       if (str == NULL) {

          printf(“Error: Out of memory …\n”);

          exit (1);

       }

            return strcpy(str, buf); /*copy string and retrun ptr */

    }

       /* read a person’s info */

       void person_read(struct person *p)

      {

            clrscr();

            printf(“Enter person’s information:\n”);

            printf(“Name: “);

            p->name = dstr_read();

            printf(“Gender (M/F): “);

            scanf(” %c”, &p->gender);

            printf(“Age : “);

            scanf(“%d”, &p->age);

      }

            /* print a person’s info */

         void person_print(struct person *p)

        {

            printf(“Name : %s\n”, p->name);

            printf (“Gender : %s\n”, p->gender == ‘M’ ? “Male” : “Female”);

            printf (“Age : %d\n”, p->age);

        }