mbed-os/libraries/tests/mbed/dev_null/main.cpp

24 lines
569 B
C++

#include "mbed.h"
#include "test_env.h"
class DevNull : public Stream {
public:
DevNull(const char *name = NULL) : Stream(name) {}
protected:
virtual int _getc() {return 0;}
virtual int _putc(int c) {return c;}
};
DevNull null("null");
int main() {
printf("MBED: re-routing stdout to /null\n");
freopen("/null", "w", stdout);
printf("MBED: printf redirected to /null\n"); // This shouldn't appear
// If failure message can be seen test should fail :)
notify_completion(false); // This is 'false' on purpose
return 0;
}