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add mutual recursive datatypes to c++ API #6179

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-07-20 20:32:00 -07:00
parent 2e13c0bf41
commit 5b219aab76
2 changed files with 67 additions and 11 deletions
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30
examples/c++/example.cpp
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@ -975,6 +975,34 @@ void datatype_example() {
cs.query(1, cons, is_cons, cons_acc);
std::cout << nil << " " << is_nil << " " << nil_acc << "\n";
std::cout << cons << " " << is_cons << " " << cons_acc << "\n";
symbol tree = ctx.str_symbol("tree");
symbol tlist = ctx.str_symbol("tree_list");
symbol accs1[2] = { ctx.str_symbol("left"), ctx.str_symbol("right") };
symbol accs2[2] = { ctx.str_symbol("hd"), ctx.str_symbol("tail") };
sort sorts1[2] = { ctx.datatype_sort(tlist), ctx.datatype_sort(tlist) };
sort sorts2[2] = { ctx.int_sort(), ctx.datatype_sort(tree) };
constructors cs1(ctx), cs2(ctx);
cs1.add(ctx.str_symbol("tnil"), ctx.str_symbol("is-tnil"), 0, nullptr, nullptr);
cs1.add(ctx.str_symbol("tnode"), ctx.str_symbol("is-tnode"), 2, accs1, sorts1);
constructor_list cl1(cs1);
cs2.add(ctx.str_symbol("lnil"), ctx.str_symbol("is-lnil"), 0, nullptr, nullptr);
cs2.add(ctx.str_symbol("lcons"), ctx.str_symbol("is-lcons"), 2, accs2, sorts2);
constructor_list cl2(cs2);
symbol names[2] = { tree, tlist };
constructor_list* cl[2] = { &cl1, &cl2 };
sort_vector dsorts = ctx.datatypes(2, names, cl);
std::cout << dsorts << "\n";
cs1.query(0, nil, is_nil, nil_acc);
cs1.query(1, cons, is_cons, cons_acc);
std::cout << nil << " " << is_nil << " " << nil_acc << "\n";
std::cout << cons << " " << is_cons << " " << cons_acc << "\n";
cs2.query(0, nil, is_nil, nil_acc);
cs2.query(1, cons, is_cons, cons_acc);
std::cout << nil << " " << is_nil << " " << nil_acc << "\n";
std::cout << cons << " " << is_cons << " " << cons_acc << "\n";
}
void expr_vector_example() {
@ -1328,7 +1356,7 @@ void iterate_args() {
int main() {
try {
try {
demorgan(); std::cout << "\n";
find_model_example1(); std::cout << "\n";
prove_example1(); std::cout << "\n";