/*
 * Copyright (c) 2008 Travis Geiselbrecht
 *
 * Use of this source code is governed by a MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT
 */
#pragma once

#include <stdarg.h>
#include <lk/compiler.h>
#include <stddef.h>

__BEGIN_CDECLS

/* printf engine that parses the format string and generates output */

/* function pointer to pass the printf engine, called back during the formatting.
 * input is a string to output, length bytes to output,
 * return code is number of characters that would have been written, or error code (if negative)
 */
typedef int (*_printf_engine_output_func)(const char *str, size_t len, void *state);

int _printf_engine(_printf_engine_output_func out, void *state, const char *fmt, va_list ap);

__END_CDECLS