PTRMAP_PTROFFSET 46761 third_party/sqlite/amalgamation/sqlite3.c #define PTRMAP_PTROFFSET(pgptrmap, pgno) (5*(pgno-pgptrmap-1))
PTRMAP_PTROFFSET  559 third_party/sqlite/src/src/btreeInt.h #define PTRMAP_PTROFFSET(pgptrmap, pgno) (5*(pgno-pgptrmap-1))