spark_wiring_print.h

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#ifndef __SPARK_WIRING_PRINTx_
#define __SPARK_WIRING_PRINT_

#include <stddef.h>
#include <string.h>
#include <stdint.h> // for uint8_t

#include "spark_wiring_string.h"
#include "spark_wiring_printable.h"

const unsigned char DEC = 10; 
const unsigned char HEX = 16; 
const unsigned char OCT = 8;  
const unsigned char BIN = 2;  

class String;
class __FlashStringHelper;

class Print
{
  private:
    int write_error;
    size_t printNumber(unsigned long, uint8_t);
    size_t printFloat(double, uint8_t);
  protected:
#ifndef DOXYGEN_DO_NOT_DOCUMENT
    void setWriteError(int err = 1) { write_error = err; }
    size_t printf_impl(bool newline, const char* format, ...);
#endif

  public:
#ifndef DOXYGEN_DO_NOT_DOCUMENT
    Print() : write_error(0) {}

    virtual ~Print() {}
#endif

    int getWriteError() { return write_error; }

    void clearWriteError() { setWriteError(0); }

    virtual size_t write(uint8_t c) = 0;

    size_t write(const char *str) {
      if (str == NULL) return 0;
      return write((const uint8_t *)str, strlen(str));
    }

    virtual size_t write(const uint8_t *buffer, size_t size);

    size_t print(const char[]);

    size_t print(char);

    size_t print(unsigned char value, int base = DEC);

    size_t print(int value, int base = DEC);

    size_t print(unsigned int value, int base = DEC);

    size_t print(long value, int base = DEC);

    size_t print(unsigned long value, int base = DEC);

    size_t print(double value, int dec = 2);

    size_t print(const Printable&);

#ifndef DOXYGEN_DO_NOT_DOCUMENT
    size_t print(const __FlashStringHelper*);
#endif

    size_t println(const char[]);

    size_t println(char value);

    size_t println(unsigned char value, int base = DEC);
    size_t println(int value, int base = DEC);

    size_t println(unsigned int value, int base = DEC);
    size_t println(long value, int base = DEC);
    size_t println(unsigned long value, int base = DEC);

    size_t println(double value, int dec = 2);
    size_t println(const Printable&);

    size_t println(void);

#ifndef DOXYGEN_DO_NOT_DOCUMENT
    size_t println(const __FlashStringHelper*);
#endif

    template <typename... Args>
    inline size_t printf(const char* format, Args... args)
    {
        return this->printf_impl(false, format, args...);
    }

    template <typename... Args>
    inline size_t printlnf(const char* format, Args... args)
    {
        return this->printf_impl(true, format, args...);
    }

};

#endif