value?(p1)
public
Returns true if the database contains the specified string value, false
otherwise.
static VALUE
fdbm_has_value(VALUE obj, VALUE valstr)
{
datum key, val;
struct dbmdata *dbmp;
DBM *dbm;
ExportStringValue(valstr);
val.dptr = RSTRING_PTR(valstr);
val.dsize = (int)RSTRING_LEN(valstr);
GetDBM2(obj, dbmp, dbm);
for (key = dbm_firstkey(dbm); key.dptr; key = dbm_nextkey(dbm)) {
val = dbm_fetch(dbm, key);
if (val.dsize == (int)RSTRING_LEN(valstr) &&
memcmp(val.dptr, RSTRING_PTR(valstr), val.dsize) == 0)
return Qtrue;
}
return Qfalse;
}