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add tuple shortcut and example to C++ API

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-04-03 12:40:18 -07:00
parent 21a3b9c8e2
commit 5ba939ad5e
2 changed files with 33 additions and 0 deletions
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11
examples/c++/example.cpp
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@ -920,6 +920,16 @@ void enum_sort_example() {
std::cout << "2: " << result_goal.as_expr() << std::endl;
}
void tuple_example() {
std::cout << "tuple example\n";
context ctx;
const char * names[] = { "first", "second" };
sort sorts[2] = { ctx.int_sort(), ctx.bool_sort() };
func_decl_vector projs(ctx);
func_decl pair = ctx.tuple_sort("pair", 2, names, sorts, projs);
std::cout << pair << "\n";
}
void expr_vector_example() {
std::cout << "expr_vector example\n";
context c;
@ -1179,6 +1189,7 @@ int main() {
incremental_example2(); std::cout << "\n";
incremental_example3(); std::cout << "\n";
enum_sort_example(); std::cout << "\n";
tuple_example(); std::cout << "\n";
expr_vector_example(); std::cout << "\n";
exists_expr_vector_example(); std::cout << "\n";
substitute_example(); std::cout << "\n";

22
src/api/c++/z3++.h
View file

@ -267,6 +267,15 @@ namespace z3 {
and in \c ts the predicates for testing if terms of the enumeration sort correspond to an enumeration.
*/
sort enumeration_sort(char const * name, unsigned n, char const * const * enum_names, func_decl_vector & cs, func_decl_vector & ts);
/**
\brief Return a tuple constructor.
\c name is the name of the returned constructor,
\c n are the number of arguments, \c names and \c sorts are their projected sorts.
\c projs is an output paramter. It contains the set of projection functions.
*/
func_decl tuple_sort(char const * name, unsigned n, char const * const * names, sort const* sorts, func_decl_vector & projs);
/**
\brief create an uninterpreted sort with the name given by the string or symbol.
*/
@ -2432,6 +2441,19 @@ namespace z3 {
for (unsigned i = 0; i < n; i++) { cs.push_back(func_decl(*this, _cs[i])); ts.push_back(func_decl(*this, _ts[i])); }
return s;
}
inline func_decl context::tuple_sort(char const * name, unsigned n, char const * const * names, sort const* sorts, func_decl_vector & projs) {
array<Z3_symbol> _names(n);
array<Z3_sort> _sorts(n);
for (unsigned i = 0; i < n; i++) { _names[i] = Z3_mk_string_symbol(*this, names[i]); _sorts[i] = sorts[i]; }
array<Z3_func_decl> _projs(n);
Z3_symbol _name = Z3_mk_string_symbol(*this, name);
Z3_func_decl tuple;
sort _ignore_s = to_sort(*this, Z3_mk_tuple_sort(*this, _name, n, _names.ptr(), _sorts.ptr(), &tuple, _projs.ptr()));
check_error();
for (unsigned i = 0; i < n; i++) { projs.push_back(func_decl(*this, _projs[i])); }
return func_decl(*this, tuple);
}
inline sort context::uninterpreted_sort(char const* name) {
Z3_symbol _name = Z3_mk_string_symbol(*this, name);
return to_sort(*this, Z3_mk_uninterpreted_sort(*this, _name));