#pragma once #include <Attributes.h> #include <Result.h> #include <stdarg.h> typedef Result<void> (*callback_t)(char, void*); Result<usize> cstyle_format(const char* format, callback_t callback, void* arg, va_list ap); Result<usize> vstring_format(char* buf, size_t max, const char* format, va_list ap); Result<usize> string_format(char* buf, size_t max, const char* format, ...);