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Add check that argument of Z3_is_algebraic_number is_expr (#8027)

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To make sure that the `to_expr` cast is safe.

Signed-off-by: Josh Berdine <josh@berdine.net>
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Josh Berdine 2025-11-16 00:19:39 +00:00 • committed by GitHub
parent 6d19c045d8
commit 43525481f0
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1 changed files with 7 additions and 0 deletions
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src/api/api_arith.cpp
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@ -156,8 +156,15 @@ extern "C" {
}
bool Z3_API Z3_is_algebraic_number(Z3_context c, Z3_ast a) {
Z3_TRY;
LOG_Z3_is_algebraic_number(c, a);
RESET_ERROR_CODE();
if (!is_expr(a)) {
SET_ERROR_CODE(Z3_INVALID_ARG, nullptr);
return false;
}
return mk_c(c)->autil().is_irrational_algebraic_numeral(to_expr(a));
Z3_CATCH_RETURN(false);
}
Z3_ast Z3_API Z3_get_algebraic_number_lower(Z3_context c, Z3_ast a, unsigned precision) {