Remove Wcatch-value and unify way to check if files are read.
Remove Wcatch-value and unify way to check if files are read.

fplll/fplll,fplll/fplll,fplll/fplll,dstehle/fplll,fplll/fplll,fplll/fplll,dstehle/fplll,cr-marcstevens/fplll,cr-marcstevens/fplll,cr-marcstevens/fplll,dstehle/fplll,cr-marcstevens/fplll