ft_printf | Recoding the libc ’ s printf function | Runtime Evironment library

I need to recreate the printf function for a school project. My current function works flawlessly, except if there are two arguments.

If I do the following: ft_printf("%c%c", 'a', 'b');

it will print aa, instead of ab.

If I do the following: ft_printf("%c%d", 't', 29);

it will not print t29 like it's supposed to. Instead, it will print t116 as it does detect that I would like to print an int, but doesn't use the right argument (it converts "t" in its ascii value (116)).

I have included below the code of my main printffunction, the ft_analysis function (to find the flags), the ft_utilities_one function (which has some basic functions like putchar() for example) as well as the parsing function I'm using to parse the string given as primary argument. Due to how many code there is, I have only included the char printing function (ft_c_craft) as an example. If you need more clarity regarding how these functions are used, you can find here my printf repository.

ft_printf.c

I'm trying to create a 3D Game Using C. but I have a problem in The following Code

explain The Code

I have a file named 1.cub (lock down the code), this file has The map. using The function read_cf_color I read The color of The floor and The sky from The 1.cub file and store The floor color in var named mlx->floor_color, and The ceiling in var named mlx->sky_color. P.S: using some other functions I read all The data from 1.cub and store it in var named mlx->lines.

parse_parameters : scan all The data in mlx->lines (1.cub file) and send every line to choose_param.

choose_param: get The line from parse_parameters and tey to match every c with the right function.

read_cf_color: This function gets the color of the floor/ceiling. and cast it from char * to long int.

ft_isfloor: get the color from the previous function and give it to the right var (mlx->floor_color/mlx->sky->color).

for example:

parse_parameters pass this line F 100 , 100 , 214 to choose_param.

Then choose_param pass The F To char c in read_cf_color and the rest 100 , 100 , 214 to char *s.

the function try to make this 100 , 100 , 214 look like this 100100214 and store it in long int color

I'm trying to replace my 'for' loop with a 'while' loop but I get a different output.

The for loop:

I am a begginer in programming and I am implementing the pipes in a C shell.

I figured out that some commands using the STDIN, the shell output is starting to work unproperly. For example the cursos is shifted.

This is the case with this kind of commands using directly the STDIN cat | echo hello or tr | ls

I checked if it was not related to a fd not closed ... I am closing the write end of the pipe as soon as I dup2 it. And I close the read end of my pipe in the child processus during pipe of the write end of the pipe.

Here is the code, sorry it is bit messy, it uses an array of int term->redir->pipe_fd to handle the multiple pipe case :

My codes are

I'm implementing the printf() function. Nearly everything works correctly, but I have an issue when called as ft_printf("%f", -0.0). My program outputs 0.0 instead of -0.0. I can't use any libraries.

My condition for checking for negativity is simply "x<0" which doesn't include my problem. I've found a promising solution in Distinguish zero and negative zero.

this is what seems would solve my problem:

I am trying to make my own printf and I have a problem with the "%f" option, precisely with rounding. When I try to prints this test :

I am using a Makefile to create an executable file, so that when I run the executable I just write ./ft_ls, but get this error, below it is the code of my Makefile.

"ar: ft_ls: Inappropriate file type or format"

But when I create a library and add my main.c file and gcc, it runs file.so. How do I create an executable from the below Makefile?

I have a project of recreating printf in my school.

I don't want to check the format specifiers for characters all the time in my code, as I find it messy, and ugly.

As for now, I have found a way by creating some global constant array, and checking using those. But I don't like the idea of having so many global variables in my code as well.

Is it one of those cases were global variables are ok? Or should I use another method to get what I want?

Here is how I'm starting: