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Lesson 8 - Person database in C - Creating persons and application menu

C and C++ The C language Dynamic memory allocation Person database in C - Creating persons and application menu

In the previous lesson, Person database in C - The linked list module, we prepared a module with a linked list for a person database program. In today's C tutorial, we're going to implement basic list functions and the application menu.

We'll implement creating a person and adding it to the list as 2 separated functions. Sometimes, we might need to add an already existing person.

Creating a person

The function for creating a person will work similarly as the function creating the list:

PERSON *create_person()
{
    PERSON *p_person = (PERSON *) malloc(sizeof(PERSON));
    if (p_person == NULL)
    {
        printf("Not enough memory to create a person.\n");
        exit(1);
    }
    return p_person;
}

The function returns a pointer to the newly created structure.


 

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In this C tutorial, we'll finish the implementation of the doubly linked list, prepare a function duplicating dynamic strings and create the main module.

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Article has been written for you by David Capka
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The author is a programmer, who likes web technologies and being the lead/chief article writer at ICT.social. He shares his knowledge with the community and is always looking to improve. He believes that anyone can do what they set their mind to.
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