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add API and example for one dimensional algebraic datatype #6179

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This commit is contained in:
Nikolaj Bjorner 2022-07-20 19:43:18 -07:00
parent 81cb575c22
commit 2e13c0bf41
2 changed files with 117 additions and 1 deletions
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24
examples/c++/example.cpp
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@ -956,6 +956,27 @@ void tuple_example() {
std::cout << pair2 << "\n";
}
void datatype_example() {
std::cout << "datatype example\n";
context ctx;
constructors cs(ctx);
symbol ilist = ctx.str_symbol("ilist");
symbol accs[2] = { ctx.str_symbol("hd"), ctx.str_symbol("tl") };
sort sorts[2] = { ctx.int_sort(), ctx.datatype_sort(ilist) };
cs.add(ctx.str_symbol("nil"), ctx.str_symbol("is-nil"), 0, nullptr, nullptr);
cs.add(ctx.str_symbol("cons"), ctx.str_symbol("is-cons"), 2, accs, sorts);
sort ls = ctx.datatype(ilist, cs);
std::cout << ls << "\n";
func_decl nil(ctx), is_nil(ctx);
func_decl_vector nil_acc(ctx);
cs.query(0, nil, is_nil, nil_acc);
func_decl cons(ctx), is_cons(ctx);
func_decl_vector cons_acc(ctx);
cs.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() {
std::cout << "expr_vector example\n";
context c;
@ -1307,7 +1328,7 @@ void iterate_args() {
int main() {
try {
try {
demorgan(); std::cout << "\n";
find_model_example1(); std::cout << "\n";
prove_example1(); std::cout << "\n";
@ -1343,6 +1364,7 @@ int main() {
incremental_example3(); std::cout << "\n";
enum_sort_example(); std::cout << "\n";
tuple_example(); std::cout << "\n";
datatype_example(); std::cout << "\n";
expr_vector_example(); std::cout << "\n";
exists_expr_vector_example(); std::cout << "\n";
substitute_example(); std::cout << "\n";