_io_getenv_len

func _io_getenv_len(name: RawPtr, name_len: Int) 'io -> Int

Returns an environment value's byte length, or a negative errno when unavailable.

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pub func _io_getenv_len(name: RawPtr, name_len: Int) 'io -> Int {
	'io(request: .getenv_len(name, name_len))
}