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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-10-02 11:35:25 -07:00
parent 3f9edad676
commit e9eab22e5c
1186 changed files with 381859 additions and 0 deletions
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lib/order.cpp Normal file
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/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
order.cpp
Abstract:
<abstract>
Author:
Leonardo de Moura (leonardo) 2008-02-15.
Revision History:
--*/
#include"order.h"
bool order::equal(expr_offset const & _t1, expr_offset const & _t2, substitution * s) {
if (_t1 == _t2)
return true;
if (s == 0)
return false;
m_eq_todo.reset();
m_eq_todo.push_back(expr_offset_pair(_t1, _t2));
while (!m_eq_todo.empty()) {
expr_offset_pair const & p = m_eq_todo.back();
expr_offset t1 = find(p.first);
expr_offset t2 = find(p.second);
m_eq_todo.pop_back();
if (t1 == t2)
continue;
expr * n1 = t1.get_expr();
expr * n2 = t2.get_expr();
if (!is_app(n1) || !is_app(n2))
return false;
if (to_app(n1)->get_decl() != to_app(n2)->get_decl())
return false;
if (to_app(n1)->get_num_args() != to_app(n2)->get_num_args())
return false;
unsigned num = to_app(n1)->get_num_args();
for (unsigned i = 0; i < num; i++)
m_eq_todo.push_back(expr_offset_pair(expr_offset(to_app(n1)->get_arg(i), t1.get_offset()),
expr_offset(to_app(n2)->get_arg(i), t2.get_offset())));
}
return true;
}