- Allowed editors: vi, vim, emacs
- All your files will be compiled on Ubuntu 14.04 LTS
- Your programs and functions will be compiled with gcc 4.8.4 using the flags -Wall -Werror -Wextra and -pedantic
- All your files should end with a new line
- A README.md file, at the root of the folder of the project is mandatory
- Your code should use the Betty style. It will be checked using betty-style.pl and betty-doc.pl
- You are not allowed to use global variables
- No more than 5 functions per file
- The only C standard library functions allowed are malloc, free and exit. Any use of functions like printf, puts, calloc, realloc etc… is forbidden
- You are allowed to use _putchar
- You don’t have to push _putchar.c, we will use our file. If you do it won’t be taken into account
- In the following examples, the main.c files are shown as examples. You can use them to test your functions, but you don’t have to push them to your repo (if you do we won’t take them into account). We will use our own main.c files at compilation. Our main.c files might be different from the one shown in the examples
- The prototypes of all your functions and the prototype of the function _putchar should be included in your header file called holberton.h
- Don’t forget to push your header file
- All your header files should be include guarded
0. Django
File: dog.h
Define a new type struct dog with the following elements:
- name, type = char *
- age, type = float
- owner, type = char *
julien@ubuntu:~/0x0d. structures, typedef$ cat 0-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
struct dog my_dog;
my_dog.name = "Django";
my_dog.age = 3.5;
my_dog.owner = "Jay";
printf("My name is %s, and I am %.1f :) - Woof!\n", my_dog.name, my_dog.age);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ make
gcc -Wall -pedantic -Werror -Wextra 0-main.c -o a
julien@ubuntu:~/0x0d. structures, typedef$ ./a
My name is Django, and I am 3.5 :) - Woof!
julien@ubuntu:~/0x0d. structures, typedef$ 1. A dog is the only thing on earth that loves you more than you love yourself
File: 1-init_dog.c
Write a function that initialize a variable of type struct dog
- Prototype: void init_dog(struct dog *d, char *name, float age, char *owner);
julien@ubuntu:~/0x0d. structures, typedef$ cat 1-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
struct dog my_dog;
init_dog(&my_dog, "Django", 3.5, "Jay");
printf("My name is %s, and I am %.1f :) - Woof!\n", my_dog.name, my_dog.age);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ gcc -Wall -pedantic -Werror -Wextra 1-main.c 1-init_dog.c -o b
julien@ubuntu:~/0x0d. structures, typedef$ ./b
My name is Django, and I am 3.5 :) - Woof!
julien@ubuntu:~/0x0d. structures, typedef$ 2. A dog will teach you unconditional love. If you can have that in your life, things won't be too bad
File: 2-print_dog.c
Write a function that prints a struct dog
- Prototype: void print_dog(struct dog *d);
- Format: see example bellow
- You are allowed to use the standard library
- If an element of d is NULL, print (nil) instead of this element. (if name is NULL, print Name: (nil))
- If d is NULL print nothing.
julien@ubuntu:~/0x0d. structures, typedef$ cat 2-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
struct dog my_dog;
my_dog.name = "Django";
my_dog.age = 3.5;
my_dog.owner = "Jay";
print_dog(&my_dog);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ gcc -Wall -pedantic -Werror -Wextra 2-main.c 2-print_dog.c -o c
julien@ubuntu:~/0x0d. structures, typedef$ ./c
Name: Django
Age: 3.500000
Owner: Jay
julien@ubuntu:~/0x0d. structures, typedef$ 3. Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read
File: dog.h
Define a new type dog_t as a new name for the type struct dog.
julien@ubuntu:~/0x0d. structures, typedef$ cat 3-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
dog_t my_dog;
my_dog.name = "Django";
my_dog.age = 3.5;
my_dog.owner = "Jay";
printf("My name is %s, and I am %.1f :) - Woof!\n", my_dog.name, my_dog.age);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ gcc -Wall -pedantic -Werror -Wextra 3-main.c -o d
julien@ubuntu:~/0x0d. structures, typedef$ ./d
My name is Django, and I am 3.5 :) - Woof!
julien@ubuntu:~/0x0d. structures, typedef$4. A door is what a dog is perpetually on the wrong side of
File: 4-new_dog.c
Write a function that creates a new dog.
- Prototype: dog_t *new_dog(char *name, float age, char *owner);
- You have to store a copy of name and owner
- Return NULL if the function fails
julien@ubuntu:~/0x0d. structures, typedef$ cat 4-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
dog_t *my_dog;
my_dog = new_dog("Django", 3.5, "Jay");
printf("My name is %s, and I am %.1f :) - Woof!\n", my_dog->name, my_dog->age);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ gcc -Wall -pedantic -Werror -Wextra 4-main.c 4-new_dog.c -o e
julien@ubuntu:~/0x0d. structures, typedef$ ./e
My name is Django, and I am 3.5 :) - Woof!
julien@ubuntu:~/0x0d. structures, typedef$ 5. How many legs does a dog have if you call his tail a leg? Four. Saying that a tail is a leg doesn't make it a leg
File: 5-free_dog.c
Write a function that frees dogs.
- Prototype: void free_dog(dog_t *d);
julien@ubuntu:~/0x0d. structures, typedef$ cat 5-main.c
#include <stdio.h>
#include "dog.h"
/**
* main - check the code for Holberton School students.
*
* Return: Always 0.
*/
int main(void)
{
dog_t *my_dog;
my_dog = new_dog("Django", 3.5, "Jay");
printf("My name is %s, and I am %.1f :) - Woof!\n", my_dog->name, my_dog->age);
free_dog(my_dog);
return (0);
}
julien@ubuntu:~/0x0d. structures, typedef$ gcc -Wall -pedantic -Werror -Wextra 5-main.c 5-free_dog.c 4-new_dog.c -o f
julien@ubuntu:~/0x0d. structures, typedef$ valgrind ./f
==22840== Memcheck, a memory error detector
==22840== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==22840== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==22840== Command: ./f
==22840==
My name is Django, and I am 3.5 :) - Woof!
==22840==
==22840== HEAP SUMMARY:
==22840== in use at exit: 0 bytes in 0 blocks
==22840== total heap usage: 4 allocs, 4 frees, 1,059 bytes allocated
==22840==
==22840== All heap blocks were freed -- no leaks are possible
==22840==
==22840== For counts of detected and suppressed errors, rerun with: -v
==22840== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
julien@ubuntu:~/0x0d. structures, typedef$