arduino-esp32/cores/esp32/Print.h
me-no-dev c8140f8288 add configTime, getLocalTime and support for time in Print
example:
```cpp
//done once on WiFi init
configTime(-7200, 3600, "pool.ntp.org");
//get local time
struct tm timeinfo;
if(!getLocalTime(&timeinfo)){
    Serial.println("Failed to obtain time");
    return;
}
//print time
Serial.println(&timeinfo);
//print time with different format
Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");
```
fixes: https://github.com/espressif/arduino-esp32/issues/29
2017-01-24 04:07:27 +02:00

104 lines
2.9 KiB
C++

/*
Print.h - Base class that provides print() and println()
Copyright (c) 2008 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef Print_h
#define Print_h
#include <stdint.h>
#include <stddef.h>
#include "WString.h"
#include "Printable.h"
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2
class Print
{
private:
int write_error;
size_t printNumber(unsigned long, uint8_t);
size_t printFloat(double, uint8_t);
protected:
void setWriteError(int err = 1)
{
write_error = err;
}
public:
Print() :
write_error(0)
{
}
virtual ~Print() {}
int getWriteError()
{
return write_error;
}
void clearWriteError()
{
setWriteError(0);
}
virtual size_t write(uint8_t) = 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 write(const char *buffer, size_t size)
{
return write((const uint8_t *) buffer, size);
}
size_t printf(const char * format, ...) __attribute__ ((format (printf, 2, 3)));
//size_t print(const __FlashStringHelper *);
size_t print(const String &);
size_t print(const char[]);
size_t print(char);
size_t print(unsigned char, int = DEC);
size_t print(int, int = DEC);
size_t print(unsigned int, int = DEC);
size_t print(long, int = DEC);
size_t print(unsigned long, int = DEC);
size_t print(double, int = 2);
size_t print(const Printable&);
size_t print(struct tm * timeinfo, const char * format = NULL);
//size_t println(const __FlashStringHelper *);
size_t println(const String &s);
size_t println(const char[]);
size_t println(char);
size_t println(unsigned char, int = DEC);
size_t println(int, int = DEC);
size_t println(unsigned int, int = DEC);
size_t println(long, int = DEC);
size_t println(unsigned long, int = DEC);
size_t println(double, int = 2);
size_t println(const Printable&);
size_t println(struct tm * timeinfo, const char * format = NULL);
size_t println(void);
};
#endif