Hi,
What's the ANSi rule concerning function and variable names that begins with an underscore. I have a function named _InitMBUs(void) in a file and in another file I accidentally called a non-existing function named InitMBus() and the compiler did not complain, but rather just link the call to an arbitrary memory location. What's wrong with the following function names?

1) void _InitMBus(void) {}
2) void _initMBus(void) {}

Is #2 the recommended way to go?

Thanks