functionObjects → IOstreams Relation

File in src/OpenFOAM/db/functionObjects	Includes file in src/OpenFOAM/db/IOstreams
logFiles / logFiles.H	Fstreams / OFstream.H
timeControl / timeControl.C	Pstreams / PstreamReduceOps.H
writeFile / writeFile.H	IOstreams / IOmanip.H