smatch doesn't recognize binary constants

[Kamal Mostafa <kamal@xxxxxxxxxxxxx>]

I enjoyed Dan Carpenter's presentation on 'smatch' at Linux Plumbers
this afternoon.

FYI, smatch yields false errors when presented with "0b" binary
constants, e.g.:
  ss.c:1388:17: error: constant 0b1111111111111 is not a valid number
I think this is because smatch/expression.c get_number_value() uses
strtoull() to check integer constants, but strtoull() does not parse
"0b" as it does "0x".

 -Kamal

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