0x0D-preprocessor

Project

p

---

Table of Contents

• Author Details
• Project Description
• Tasks
  • 0. Object-like Macro
  • 1. Pi
  • 2. File name
  • 3. Function-like macro
  • 4. SUM

---

Author Details

• Dean Robin Otsyeno - [email protected]

Project Description

• Allowed editors: vi, vim, emacs
• All your files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89
• 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
• Don’t forget to push your header file
• All your header files should be include guarded

Tasks

0

Table of Contents

0. Object-like Macro

• Create a header file that defines a macro named SIZE as an abbreviation for the token 1024.

julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 0-main.c -o a
julien@ubuntu:~/0x0c. macro, structures$ ./a
1122

• Repo
  • GitHub repository: alx-low_level_programming
  • Directory: 0x0D-preprocessor
  • File: 0-object_like_macro.h
  • Example file: 0-main.c

---

1

Table of Contents

1. Pi

• Create a header file that defines a macro named PI as an abbreviation for the token 3.14159265359.

julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 1-main.c -o b
julien@ubuntu:~/0x0c. macro, structures$ ./b
30171.855

• Repo
  • GitHub repository: alx-low_level_programming
  • Directory: 0x0D-preprocessor
  • File: 1-pi.h
  • Example file: 1-main.c

---

2

Table of Contents

2. File name

• Write a program that prints the name of the file it was compiled from, followed by a new line.

  • You are allowed to use the standard library

julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 2-main.c -o c
julien@ubuntu:~/0x0c. macro, structures$ ./c
2-main.c
julien@ubuntu:~/0x0c. macro, structures$ cp 2-main.c 02-main.c
julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 02-main.c -o cc
julien@ubuntu:~/0x0c. macro, structures$ ./cc
02-main.c

• Repo
  • GitHub repository: alx-low_level_programming
  • Directory: 0x0D-preprocessor
  • File: 2-main.c

---

3

Table of Contents

3. Function-like macro

• Write a function-like macro ABS(x) that computes the absolute value of a number x.

julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 3-main.c -o d
julien@ubuntu:~/0x0c. macro, structures$ ./d
980, 980

• Repo
  • GitHub repository: alx-low_level_programming
  • Directory: 0x0D-preprocessor
  • File: 3-function_like_macro.h
  • Example file: 3-main.c

---

4

Table of Contents

4. SUM

• Write a function-like macro SUM(x, y) that computes the sum of the numbers x and y.

julien@ubuntu:~/0x0c. macro, structures$ gcc -Wall -pedantic -Werror -Wextra -std=gnu89 4-main.c -o e
julien@ubuntu:~/0x0c. macro, structures$ ./e
1122

• Repo
  • GitHub repository: alx-low_level_programming
  • Directory: 0x0D-preprocessor
  • File: 4-sum.h
  • Example file: 4-main.c

---

_{Dean Robin Otsyeno - [email protected]}