On exit: contains a null-terminated character-string read from the file associated with the FileID. If line is too small to hold the entire string, excess characters are discarded.
3: – IntegerInput
On entry: the size of the character buffer line. If , no characters are read and line is unchanged.
4: – NagError *Input/Output
The NAG error argument (see Section 7 in the Introduction to the NAG Library CL Interface).