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enable binary string access to unsigned numerals over API #4568

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-07-07 18:17:54 -07:00
parent 2d358a9a50
commit 4a8533e41f
4 changed files with 41 additions and 1 deletions
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21
src/api/api_numeral.cpp
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@ -180,6 +180,27 @@ extern "C" {
}
Z3_string Z3_API Z3_get_numeral_binary_string(Z3_context c, Z3_ast a) {
Z3_TRY;
// This function invokes Z3_get_numeral_rational, but it is still ok to add LOG command here because it does not return a Z3 object.
LOG_Z3_get_numeral_binary_string(c, a);
RESET_ERROR_CODE();
CHECK_IS_EXPR(a, "");
rational r;
bool ok = Z3_get_numeral_rational(c, a, r);
if (ok && r.is_int() && !r.is_neg()) {
std::stringstream strm;
r.display_bin(strm, r.get_num_bits());
return mk_c(c)->mk_external_string(strm.str().c_str());
}
else {
SET_ERROR_CODE(Z3_INVALID_ARG, nullptr);
return "";
}
Z3_CATCH_RETURN("");
}
Z3_string Z3_API Z3_get_numeral_string(Z3_context c, Z3_ast a) {
Z3_TRY;
// This function invokes Z3_get_numeral_rational, but it is still ok to add LOG command here because it does not return a Z3 object.