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Add ite operator to the C++ API

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2013-01-04 08:29:25 -08:00
parent f8f23382dc
commit c430fe26aa
2 changed files with 23 additions and 0 deletions
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10
examples/c++/example.cpp
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@ -337,6 +337,15 @@ void ite_example() {
std::cout << "term: " << ite << "\n";
}
void ite_example2() {
std::cout << "if-then-else example2\n";
context c;
expr b = c.bool_const("b");
expr x = c.int_const("x");
expr y = c.int_const("y");
std::cout << (ite(b, x, y) > 0) << "\n";
}
/**
\brief Small example using quantifiers.
*/
@ -889,6 +898,7 @@ int main() {
error_example(); std::cout << "\n";
numeral_example(); std::cout << "\n";
ite_example(); std::cout << "\n";
ite_example2(); std::cout << "\n";
quantifier_example(); std::cout << "\n";
unsat_core_example1(); std::cout << "\n";
unsat_core_example2(); std::cout << "\n";

13
src/api/c++/z3++.h
View file

@ -620,6 +620,19 @@ namespace z3 {
return expr(a.ctx(), r);
}
/**
\brief Create the if-then-else expression <tt>ite(c, t, e)</tt>
\pre c.is_bool()
*/
friend expr ite(expr const & c, expr const & t, expr const & e) {
check_context(c, t); check_context(c, e);
assert(c.is_bool());
Z3_ast r = Z3_mk_ite(c.ctx(), c, t, e);
c.check_error();
return expr(c.ctx(), r);
}
friend expr operator==(expr const & a, expr const & b) {
check_context(a, b);
Z3_ast r = Z3_mk_eq(a.ctx(), a, b);