A rewritten part of the C99 library, consisting of more than 60 functions. It was written to study the memory and structure of the C language. The main requirements were: adhere to the DRY concept and avoid leaks. A rewritten part of the C99 library, consisting of more than 60 functions. It was written to study the memory and structure of the C language. The main requirements were: adhere to the concept of DRY and avoid leaks.