dgmacharia97 / printf Goto Github PK

0x11. C - printf C Group project By: Julien Barbier, co-founder & CEO Weight: 5 Project to be done in teams of 2 people (your team: Daniel gichohi macharia Gichohi, Martins Adedigba) Project over - took place from Mar 24, 2023 6:00 AM to Mar 29, 2023 6:00 AM An auto review will be launched at the deadline In a nutshell… Contribution: 100.0% Auto QA review: 101.0/101 mandatory & 1121.0/1123 optional Altogether: 199.82% Mandatory: 100.0% Optional: 99.82% Contribution: 100.0% Calculation: 100.0% * (100.0% + (100.0% * 99.82%) ) == 199.82% Concepts For this project, we expect you to look at these concepts:

Group Projects Pair Programming - How To Flowcharts Technical Writing Background Context Write your own printf function.

^ In this picture, Kris, and Jul

Resources Read or watch:

Secrets of printf Group Projects concept page (Don’t forget to read this) Flowcharts concept page man or help:

printf (3) Requirements General 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 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 should be included in your header file called main.h Don’t forget to push your header file All your header files should be include guarded Note that we will not provide the _putchar function for this project GitHub There should be one project repository per group. The other members do not fork or clone the project to ensure only one of the team has the repository in their github account otherwise you risk scoring 0%

More Info Authorized functions and macros write (man 2 write) malloc (man 3 malloc) free (man 3 free) va_start (man 3 va_start) va_end (man 3 va_end) va_copy (man 3 va_copy) va_arg (man 3 va_arg) Compilation Your code will be compiled this way: $ gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c As a consequence, be careful not to push any c file containing a main function in the root directory of your project (you could have a test folder containing all your tests files including main functions) Our main files will include your main header file (main.h): #include main.h You might want to look at the gcc flag -Wno-format when testing with your _printf and the standard printf. Example of test file that you could use: alex@ubuntu:~/c/printf$ cat main.c #include <limits.h> #include <stdio.h> #include "main.h"

/**

• main - Entry point

• Return: Always 0 */ int main(void) { int len; int len2; unsigned int ui; void *addr;

  len = _printf("Let's try to printf a simple sentence.\n"); len2 = printf("Let's try to printf a simple sentence.\n"); ui = (unsigned int)INT_MAX + 1024; addr = (void *)0x7ffe637541f0; _printf("Length:[%d, %i]\n", len, len); printf("Length:[%d, %i]\n", len2, len2); _printf("Negative:[%d]\n", -762534); printf("Negative:[%d]\n", -762534); _printf("Unsigned:[%u]\n", ui); printf("Unsigned:[%u]\n", ui); _printf("Unsigned octal:[%o]\n", ui); printf("Unsigned octal:[%o]\n", ui); _printf("Unsigned hexadecimal:[%x, %X]\n", ui, ui); printf("Unsigned hexadecimal:[%x, %X]\n", ui, ui); _printf("Character:[%c]\n", 'H'); printf("Character:[%c]\n", 'H'); _printf("String:[%s]\n", "I am a string !"); printf("String:[%s]\n", "I am a string !"); _printf("Address:[%p]\n", addr); printf("Address:[%p]\n", addr); len = _printf("Percent:[%%]\n"); len2 = printf("Percent:[%%]\n"); _printf("Len:[%d]\n", len); printf("Len:[%d]\n", len2); _printf("Unknown:[%r]\n"); printf("Unknown:[%r]\n"); return (0); } alex@ubuntu:/c/printf$ gcc -Wall -Wextra -Werror -pedantic -std=gnu89 -Wno-format *.c alex@ubuntu:/c/printf$ ./printf Let's try to printf a simple sentence. Let's try to printf a simple sentence. Length:[39, 39] Length:[39, 39] Negative:[-762534] Negative:[-762534] Unsigned:[2147484671] Unsigned:[2147484671] Unsigned octal:[20000001777] Unsigned octal:[20000001777] Unsigned hexadecimal:[800003ff, 800003FF] Unsigned hexadecimal:[800003ff, 800003FF] Character:[H] Character:[H] String:[I am a string !] String:[I am a string !] Address:[0x7ffe637541f0] Address:[0x7ffe637541f0] Percent:[%] Percent:[%] Len:[12] Len:[12] Unknown:[%r] Unknown:[%r] alex@ubuntu:~/c/printf$ We strongly encourage you to work all together on a set of tests If the task does not specify what to do with an edge case, do the same as printf Copyright - Plagiarism You are tasked to come up with solutions for the tasks below yourself to meet with the above learning objectives. You will not be able to meet the objectives of this or any following project by copying and pasting someone else’s work. You are not allowed to publish any content of this project. Any form of plagiarism is strictly forbidden and will result in removal from the program.