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//
// aegis - project change supervisor
// Copyright (C) 2004-2008 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see
// <http://www.gnu.org/licenses/>.
//
#include <common/symtab.h>
bool
symtab_ty::valid()
const
{
if (hash_table == 0)
return false;
if (hash_modulus == 0)
return false;
// the hash_modulus is required to be a power of two
if ((hash_modulus & (hash_modulus - 1)) != 0)
return false;
if (hash_mask + 1 != hash_modulus)
return false;
if (hash_load >= hash_modulus)
return false;
str_hash_ty count = 0;
for (str_hash_ty j = 0; j < hash_modulus; ++j)
{
for (row_t *rp = hash_table[j]; rp; rp = rp->overflow)
{
if (rp->data == 0)
return false;
if (!rp->key.valid())
return false;
++count;
}
}
return (count == hash_load);
}
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