SETBIT           4253 ext/pcre/pcrelib/pcre_compile.c     SETBIT(classbits, cd->fcc[c]);
SETBIT           4281 ext/pcre/pcrelib/pcre_compile.c   SETBIT(classbits, c);
SETBIT           39219 ext/sqlite3/libsqlite/sqlite3.c       SETBIT(pV, (i+1));