Ensure tr_array doesn't print <null> when len == 0

PelionIoT / mbed-trace

mbed trace library

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Ensure tr_array doesn't print <null> when len == 0 #65

Closed kjbracey closed 7 years ago

kjbracey commented 7 years ago

tr_array(NULL, 0) would output "<null>" - this is unhelpful, as a number of parts of the system regard (NULL, 0) as being a legal empty value. Make this output "" instead.

JanneKiiskila commented 7 years ago