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  1. Hello I don't know if this is quite the right place to post this or if my title is describing this correct and maybe this is more of a general C questions, but I hope its OK to post it here. It is on a MSP430 Launchpad anyway. The code is simplified, there is more parameters passed to the function etc. // I have a function like this. void foo (char* bar) { if (!bar) Serial.print("bar is NULL"); // I want to check when NULL is passed on but this doesn't work? // Also tried (bar == NULL) and (bar[0] == NULL)... else Serial.print("bar is not NULL"); } // Usually I call it like this. foo("Normally text passed here"); // But I would like to call it like this also. foo(NULL); Looking forward to any reply. Best regards