Return to Revisions

I want to make a timer library. The cpp file I have written is:

#include "avr/interrupt.h"
#include "Arduino.h"
#include "AllTimer.h"
AllTimer::AllTimer()
{}
void AllTimer::dofun(void)
{
 TIFR1 |= _BV(OCF1A);
 TCCR1B = 0X00;
 DigitalWrite(13,!digitalRead(13));
 
}
void AllTimer::setTimer(void)
{
 TCNT1 = 0x0BDC;
 TCCR1A = 0x00;
 TCCR1B = 0x00;
 TCCR1B |= (1<<CS12) && (1<<CS10);
 TIMSK1 |= (1<<TOIE1);
 sei();
}
ISR (TIMER1_OVF_vect)
{
 dofun();
}

And the header file:

#ifndef AllTimer_h
#define AllTimer_h
class AllTimer{
public:
 AllTimer();
 void setTimer(void);
private:
 void dofun(void);
 
};
#endif

While compiling the file i am getting the following error:

sketch_jan05a.cpp: In function ‘void __vector_13()’:
sketch_jan05a.cpp:34:9: error: ‘dofun’ was not declared in this scope