ardupilot/libraries/AP_HAL/Util.h

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#ifndef __AP_HAL_UTIL_H__
#define __AP_HAL_UTIL_H__
#include <stdarg.h>
#include "AP_HAL_Namespace.h"
#include <AP_Progmem.h>
class AP_HAL::Util {
public:
virtual int snprintf(char* str, size_t size,
const char *format, ...) = 0;
virtual int snprintf_P(char* str, size_t size,
const prog_char_t *format, ...) = 0;
virtual int vsnprintf(char* str, size_t size,
const char *format, va_list ap) = 0;
virtual int vsnprintf_P(char* str, size_t size,
const prog_char_t *format, va_list ap) = 0;
// run a debug shall on the given stream if possible. This is used
// to support dropping into a debug shell to run firmware upgrade
// commands
virtual bool run_debug_shell(AP_HAL::BetterStream *stream) = 0;
};
#endif // __AP_HAL_UTIL_H__