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