m_printf.h

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/*
Author: (github.com/)ADiea
Project: Sming for ESP8266 - https://github.com/SmingHub/Sming
License: MIT
Date: 21.12.2015
Descr: embedded very simple version of printf with float support
*/
#pragma once

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>

#ifdef __cplusplus

extern "C++" {

#include <Delegate.h>

using nputs_callback_t = Delegate<size_t(const char* str, size_t length)>;

nputs_callback_t m_setPuts(nputs_callback_t callback);

} // extern "C++"

extern "C" {
#endif

int m_vsnprintf(char* buf, size_t maxLen, const char* fmt, va_list args) __attribute__((format(printf, 3, 0)));
int m_snprintf(char* buf, int length, const char* fmt, ...) __attribute__((format(printf, 3, 4)));
int m_printf(char const*, ...) __attribute__((format(printf, 1, 2)));
int m_vprintf(const char* format, va_list arg) __attribute__((format(printf, 1, 0)));

size_t m_putc(char c);

size_t m_nputs(const char* str, size_t length);

size_t m_puts(const char* str);

#ifdef __cplusplus
}

extern "C++" {

template <typename... Args> int snprintf(char* buf, int length, const char* fmt, Args... args)
{
    return m_snprintf(buf, length, fmt, args...);
}

template <typename... Args> int printf(const char* fmt, Args... args)
{
    return m_printf(fmt, args...);
}

extern "C" void m_printHex(const char* tag, const void* data, size_t len, int addr = -1, size_t bytesPerLine = 16);
}

#else

void m_printHex(const char* tag, const void* data, size_t len, int addr, size_t bytesPerLine);

#endif