callback_printf enables portable sprintf, snprintf, vsprintf and vsnprintf like functions. The code includes samples for those functions. It's fast, threadsafe and without dependencies to other libraries. It supports all formats of C 11 standard. wchar_t arguments and strings are converted to UTF-8.

fast, portable and full featured wrappers for strtol, strtoul, strtoll and strtoull

A simple and efficient command line numeric system conversion tool written in C. Supports binary, decimal, hexadecimal and octal.

A Python package to convert numerical amounts to words with special handling for Indian Rupees (INR) and Bangladeshi Taka (BDT) with Numeric System Like Lakh, Crore. Useful for financial documents, invoices, and official reports where amounts need to be written out in words.