stdio-from-scratch

A learning project implementing parts of C's stdio library functionality from scratch, using the Windows API (windows.h) as the underlying I/O layer.

The goal is to understand how standard I/O works under the hood by implementing the functionality myself rather than relying entirely on the existing C standard library.

Current Progress

starting with the simpler functions and gradually building towards more functionality and more complex functions.

Implemented

• putchar()
• getchar()

More functions will be added as the project develops.

Roadmap

Basic I/O

• putchar()
• getchar()
• puts()
• fgets()

Stream handling

• FILE
• putc()
• fgetc()
• fflush()

File I/O

• fopen()
• fclose()
• fread()
• fwrite()

Formatted I/O

• printf()
• scanf()

Note

This is a learning project and is not intended to replace the standard C library. The implementation will evolve over time as I explore more of the functionality provided by stdio.h.