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type check distinct operator. fixes #62

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Signed-off-by: Nikolaj Bjorner <nbjorner@hotmail.com>
This commit is contained in:
Nikolaj Bjorner 2015-04-27 11:10:37 -07:00
parent f7d9438e7b
commit 620c11932b
3 changed files with 14 additions and 2 deletions
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11
src/ast/ast.cpp
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@ -1043,6 +1043,13 @@ func_decl * basic_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
case OP_DISTINCT: {
func_decl_info info(m_family_id, OP_DISTINCT);
info.set_pairwise();
for (unsigned i = 1; i < arity; i++) {
if (domain[i] != domain[0]) {
std::ostringstream buffer;
buffer << "Sort mismatch between first argument and argument " << (i+1);
throw ast_exception(buffer.str().c_str());
}
}
return m_manager->mk_func_decl(symbol("distinct"), arity, domain, m_bool_sort, info);
}
default:
@ -2338,6 +2345,10 @@ quantifier * ast_manager::update_quantifier(quantifier * q, bool is_forall, unsi
num_patterns == 0 ? q->get_no_patterns() : 0);
}
app * ast_manager::mk_distinct(unsigned num_args, expr * const * args) {
return mk_app(m_basic_family_id, OP_DISTINCT, num_args, args);
}
app * ast_manager::mk_distinct_expanded(unsigned num_args, expr * const * args) {
if (num_args < 2)
return mk_true();

2
src/ast/ast.h
View file

@ -2000,7 +2000,7 @@ public:
app * mk_and(expr * arg1, expr * arg2, expr * arg3) { return mk_app(m_basic_family_id, OP_AND, arg1, arg2, arg3); }
app * mk_implies(expr * arg1, expr * arg2) { return mk_app(m_basic_family_id, OP_IMPLIES, arg1, arg2); }
app * mk_not(expr * n) { return mk_app(m_basic_family_id, OP_NOT, n); }
app * mk_distinct(unsigned num_args, expr * const * args) { return mk_app(m_basic_family_id, OP_DISTINCT, num_args, args); }
app * mk_distinct(unsigned num_args, expr * const * args);
app * mk_distinct_expanded(unsigned num_args, expr * const * args);
app * mk_true() { return m_true; }
app * mk_false() { return m_false; }