💡ft_printf💡
💡Overview💡
ft_printf is a custom implementation of the C standard library function printf. The goal of this project is to replicate the behavior of the original printf, with support for a subset of format specifiers and some basic formatting options. This project helps improve understanding of variadic functions and formatted output in C.
💡Features💡
- Supports a subset of the standard
printfformat specifiers:%c: Prints a single character%s: Prints a string%d: Prints a decimal (integer) number%i: Prints an integer%u: Prints an unsigned integer%x: Prints a number in hexadecimal (lowercase)%X: Prints a number in hexadecimal (uppercase)%%: Prints a percent sign (%)
💡Installation💡
-
💡Step 1: Clone the repository💡
git clone https://github.com/marouaneaddou/ft_printf.git
-
💡Step 2: Compile the project💡
make
-
💡Step 3: Link with your project💡
Now, you can link
ft_printfwith your C project. For example, if you have a main.c file in your project, you can compile and link it like this:gcc your_file.c -L. -lftprintf -o your_program
Here’s what this command does:
-
your_file.cis the source code file for your project. -
-L.tells the compiler to look in the current directory (wherelibftprintf.ais located) for libraries. -
-lftprintflinks thelibftprintf.alibrary to your program. -
-o your_programspecifies the name of the final executable (you can replaceyour_programwith your desired name).
Note:
When you use the
-L.option, make sure the path points to the directory wherelibftprintf.ais located. The-lftprintfoption tells the compiler to link with thelibftprintflibrary, wherelibftprintf.ais the static library file. The-L.flag ensures that the linker can find the library file in the current directory. -
💡Example:💡
If you have a main.cfile that uses ft_printf, here's a minimal example:
#include "ft_printf.h"
int main() {
ft_printf("Hello, world! The number is %d.\n", 42);
return 0;
}- Compile and link it with ft_printf:
gcc main.c -L. -lftprintf -o your_program_name
- Then run your program:
./your_program_name
- Expected Output:
Hello, world! The number is 42.
💡Testing💡
To test the implementation of ft_printf, a tester.c file is included. The tester.c file compares the output of ft_printf with the standard printf function.
-
💡Step 1: Compile the tester program💡
The
Makefileincludes a target for compiling the tester program. Simply run the following command to compile the tester:make tester
This command compiles tester.c along with the necessary object files to create the executable tester.
-
💡 Step 2: Run the tester 💡
After compilation, run the
testerexecutable:./tester
This will execute the tests and display the results, comparing the outputs of ft_printf and the original printf.
💡 Test Results 💡
💡 Cleanup 💡
After compiling and testing, you can remove the generated object files and executables using the following commands:
-
To remove only object files (*.o):
make clean
-
To remove object files and the compiled library/executable:
make fclean
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To rebuild everything from scratch:
make re