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0x1C-makefiles

README.md

Requirements

General

  • Allowed editors: vi, vim, emacs
  • OS: Ubuntu 14.04 LTS
  • Version of gcc: 4.8.4
  • Version of make: GNU Make 3.81
  • All your files should end with a new line
  • A README.md file, at the root of the folder of the project, is mandatory

Tasks

0. make -f 0-Makefile

File: 0-Makefile

Create your first Makefile.

Requirements:

  • name of the executable: holberton
  • rules: all
  • The all rule builds your executable
  • variables: none
julien@ubuntu:~/0x1C. Makefiles$ make -f 0-Makefile 
gcc main.c holberton.c -o holberton
julien@ubuntu:~/0x1C. Makefiles$ ./holberton 
j#0000000000000000000000000000000000000
j#000000000000000000@Q**g00000000000000
j#0000000000000000*]++]4000000000000000
j#000000000000000k]++]++*N#000000000000
j#0000000000000*C+++]++]++]J*0000000000
j#00000000000@+]++qwwwp=]++++]*00000000
j#0000000000*+++]q#0000k+]+]++]4#000000
j#00000000*C+]+]w#0000*]+++]+]++0000000
j#0000we+]wW000***C++]++]+]++++40000000
j#000000000*C+]+]]+]++]++]++]+q#0000000
j#0000000*]+]+++++++]++]+++]+++J0000000
j#000000C++]=]+]+]+]++]++]+]+]+]=000000
j#00000k+]++]+++]+]++qwW0000000AgW00000
j#00000k++]++]+]+++qW#00000000000000000
j#00000A]++]++]++]++J**0000000000000000
j#000000e]++]+++]++]++]J000000000000000
j#0000000A]++]+]++]++]++000000000000000
j#000000000w]++]+]++]+qW#00000000000000
j#00000000000w]++++]*0##000000000000000
j#0000000000000Ag]+]++*0000000000000000
j#00000000000000000we]+]Q00000000000000
j#0000000000000@@+wgdA]+J00000000000000
j#0000000000000k?qwgdC=]4#0000000000000
j#00000000000000w]+]++qw#00000000000000
"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
julien@ubuntu:~/0x1C. Makefiles$

1. make -f 1-Makefile

File: 1-Makefile

Requirements:

  • name of the executable: holberton
  • rules: all
  • The all rule builds your executable
  • variables: CC, SRC
  • CC: the compiler to be used
  • SRC: the .c files
julien@ubuntu:~/0x1C. Makefiles$ make -f 1-Makefile
gcc main.c holberton.c -o holberton
julien@ubuntu:~/0x1C. Makefiles$ make -f 1-Makefile
gcc main.c holberton.c -o holberton
julien@ubuntu:~/0x1C. Makefiles$

2. make -f 2-Makefile

File: 2-Makefile

Create your first useful Makefile.

Requirements:

  • name of the executable: holberton
  • rules: all
  • The all rule builds your executable
  • variables: CC, SRC, OBJ, NAME
  • CC: the compiler to be used
  • SRC: the .c files
  • OBJ: the .o files
  • NAME: the name of the executable
  • The all rule should recompile only the updated source files
  • You are not allowed to have a list of all the .o files
julien@ubuntu:~/0x1C. Makefiles$ make -f 2-Makefile
gcc    -c -o main.o main.c
gcc    -c -o holberton.o holberton.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ make -f 2-Makefile
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ echo "/* Holberton */" >> main.c
julien@ubuntu:~/0x1C. Makefiles$ make -f 2-Makefile
gcc    -c -o main.o main.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$

3. make -f 3-Makefile

File: 3-Makefile

Requirements:

  • name of the executable: holberton
  • rules: all, clean, oclean, fclean, re
  • all: builds your executable
  • clean: deletes all Emacs and Vim temporary files along with the executable
  • oclean: deletes the object files
  • fclean: deletes the Emacs temporary files, the executable, and the object files
  • re: forces recompilation of all source files
  • variables: CC, SRC, OBJ, NAME, RM
  • CC: the compiler to be used
  • SRC: the .c files
  • OBJ: the .o files
  • NAME: the name of the executable
  • RM: the program to delete files
  • The all rule should recompile only the updated source files
  • The clean, oclean, fclean, re rules should never fail
  • You are not allowed to have a list of all the .o files
julien@ubuntu:~/holberton/curriculum_by_julien/holbertonschool-low_level_programming/0x1C. Makefiles$ ls -1
0-Makefile
1-Makefile
2-Makefile
3-Makefile
holberton.c
main.c
main.c~
m.h
julien@ubuntu:~/0x1C. Makefiles$ make -f 3-Makefile
gcc    -c -o main.o main.c
gcc    -c -o holberton.o holberton.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ make all -f 3-Makefile
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ ls -1
0-Makefile
1-Makefile
2-Makefile
3-Makefile
holberton
holberton.c
holberton.o
main.c
main.c~
main.o
m.h
julien@ubuntu:~/0x1C. Makefiles$ make clean -f 3-Makefile 
rm -f *~ holberton
julien@ubuntu:~/0x1C. Makefiles$ make oclean -f 3-Makefile 
rm -f main.o holberton.o
julien@ubuntu:~/0x1C. Makefiles$ make fclean -f 3-Makefile 
rm -f *~ holberton
rm -f main.o holberton.o
julien@ubuntu:~/0x1C. Makefiles$ make all -f 3-Makefile
gcc    -c -o main.o main.c
gcc    -c -o holberton.o holberton.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ make all -f 3-Makefile
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$ make re -f 3-Makefile
rm -f main.o holberton.o
gcc    -c -o main.o main.c
gcc    -c -o holberton.o holberton.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$

4. A complete Makefile

File: 4-Makefile

Requirements:

  • name of the executable: holberton

  • rules: all, clean, fclean, oclean, re

  • all: builds your executable

  • clean: deletes all Emacs and Vim temporary files along with the executable

  • oclean: deletes the object files

  • fclean: deletes the Emacs temporary files, the executable, and the object files

  • re: forces recompilation of all source files

  • variables: CC, SRC, OBJ, NAME, RM, CFLAGS

  • CC: the compiler to be used

  • SRC: the .c files

  • OBJ: the .o files

  • NAME: the name of the executable

  • RM: the program to delete files

  • CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic

  • The all rule should recompile only the updated source files

  • The clean, oclean, fclean, re rules should never fail

  • You are not allowed to have a list of all the .o files

julien@ubuntu:~/0x1C. Makefiles$ make all -f 4-Makefile
gcc -Wall -Werror -Wextra -pedantic   -c -o main.o main.c
gcc -Wall -Werror -Wextra -pedantic   -c -o holberton.o holberton.c
gcc main.o holberton.o -o holberton
julien@ubuntu:~/0x1C. Makefiles$

5. Island Perimeter

File: 5-island_perimeter.py

Technical interview preparation:

  • You are not allowed to google anything

  • Whiteboard first

  • Create a function def island_perimeter(grid): that returns the perimeter of the island described in grid:

  • grid is a list of list of integers:

  • 0 represents a water zone

  • 1 represents a land zone

  • One cell is a square with side length 1

  • Grid cells are connected horizontally/vertically (not diagonally).

  • Grid is rectangular, width and height don’t exceed 100

  • Grid is completely surrounded by water, and there is one island (or nothing).

  • The island doesn’t have "lakes" (water inside that isn’t connected to the water around the island).

Requirements:

  • First line contains #!/usr/bin/python3
  • You are not allowed to import any module
  • Module and function must be documented
guillaume@ubuntu:~/0x1C$ cat 5-main.py
#!/usr/bin/python3
"""
5-main
"""
island_perimeter = __import__('5-island_perimeter').island_perimeter

if __name__ == "__main__":
    grid = [
        [0, 0, 0, 0, 0, 0],
        [0, 1, 0, 0, 0, 0],
        [0, 1, 0, 0, 0, 0],
        [0, 1, 1, 1, 0, 0],
        [0, 0, 0, 0, 0, 0]
    ]
    print(island_perimeter(grid))

guillaume@ubuntu:~/0x1C$ 
guillaume@ubuntu:~/0x1C$ ./5-main.py
12
guillaume@ubuntu:~/0x1C$

6. make -f 100-Makefile

File: 100-Makefile

Requirements:

  • name of the executable: holberton
  • rules: all, clean, fclean, oclean, re
  • all: builds your executable
  • clean: deletes all Emacs and Vim temporary files along with the executable
  • oclean: deletes the object files
  • fclean: deletes the Emacs temporary files, the executable, and the object files
  • re: forces recompilation of all source files
  • variables: CC, SRC, OBJ, NAME, RM, CFLAGS
  • CC: the compiler to be used
  • SRC: the .c files
  • OBJ: the .o files
  • NAME: the name of the executable
  • RM: the program to delete files
  • CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic
  • The all rule should recompile only the updated source files
  • The clean, oclean, fclean, re rules should never fail
  • You are not allowed to have a list of all the .o files
  • You have to use $(RM) for the cleaning up rules, but you are not allowed to set the RM variable
  • You are not allowed to use the string $(CC) more than once in your Makefile
  • You are only allowed to use the string $(RM) twice in your Makefile
  • You are not allowed to use the string $(CFLAGS) (but the compiler should still use the flags you set in this variable)
  • You are not allowed to have an $(OBJ) rule
  • You are not allowed to use the %.o: %.c rule
  • Your Makefile should work even if there is a file in the folder that has the same name as one of your rule
  • Your Makefile should not compile if the header file m.h is missing