tree d701361ded9eb32398ca0074a77a43fa47ecd200
parent a81465a37cee19a5d8a03ee1b1b51a3cdc7b04c9
author njn <njn@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1232054964 +0000
committer njn <njn@a5019735-40e9-0310-863c-91ae7b9d1cf9> 1232054964 +0000

Introduce a new type, PtrdiffT.  Replace lots of uses of OffT (all those
that are memory offsets) with PtrdiffT;  OffT should only be used for file
sizes and offsets.

Change Off64T from a ULong to a Long, as it should be.  Replace some uses
of ULong in the address space manager with Off64T to match.

Also add a comment explaining the meanings of the basic types like Addr,
OffT, SizeT, etc.

Also fix the prototype for VG_(pread) -- the last arg is an OffT, not an
Int.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8959 a5019735-40e9-0310-863c-91ae7b9d1cf9