__FILE__
__LINE__
__DATE__
__TIME__
__TIMESTAMP__
__func__
EOF
NULL
SEEK_CUR
SEEK_END
SEEK_SET
stdin
stdout
stderr

----------------------------------------------------

[
	["constant", "__FILE__"],
	["constant", "__LINE__"],
	["constant", "__DATE__"],
	["constant", "__TIME__"],
	["constant", "__TIMESTAMP__"],
	["constant", "__func__"],
	["constant", "EOF"],
	["constant", "NULL"],
	["constant", "SEEK_CUR"],
	["constant", "SEEK_END"],
	["constant", "SEEK_SET"],
	["constant", "stdin"],
	["constant", "stdout"],
	["constant", "stderr"]
]

----------------------------------------------------

Checks for all constants.