If you run `printf("Event: %s Value: %s ", event, value);` in a cinterop *.def file it does not seem...

# kotlin-native

[JoakimForslund]

If you run printf("Event: %s Value: %s ", event, value); in a cinterop *.def file it does not seem to be sent to the stream output, is there anyway to make it show up the same way as println(..) does from commonCode ?

[svyatoslav.scherbina]

What happens if you add a new line character to the string?

printf("Event: %s Value: %s \n", event, value);

[JoakimForslund]

Same thing

[JoakimForslund]

The calling function that hold the printf looks like:

void BroadcastEventToUser(const char* event, const char* value){
    printf("Event: %s Value: %s \n", event, value);
    if(bce){
        bce(event, value);
    }
}

but I can't spot any errors in the setup

[JoakimForslund]

And I do know the method is being called, because without the bce check it crashes

[svyatoslav.scherbina]

Please try to clean and rebuild the project.

[JoakimForslund]

Cleaned and rebuilt, still does not show up. I mean it does know about the printf-method since no crash, but its not sending it into the multiplatform android log stream, while using println(..) in commonCode does

[svyatoslav.scherbina]

Do I understand correctly that you use Kotlin/Native to compile your code to Android NDK?

[svyatoslav.scherbina]

AFAIK, standard C printf function is not supposed to produce output to Android log streams: https://stackoverflow.com/questions/10274920/how-to-get-printf-messages-written-in-ndk-application
Can this be the cause of your issue?

[JoakimForslund]

yeah you are probably correct, but I figured since println worked even in the android ndk, printf should work too, but that is probably the issue. I moved the printf code back to commonCode instead and just println for now there

[svyatoslav.scherbina]

println != printf.
println doesn’t use printf when compiling to Android NDK.

[JoakimForslund]

So basicly println wraps the __android_log_print call then

[JoakimForslund]

good to know

[JoakimForslund]

Thanks