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Added bit2bool to the API (#5992)

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* Fixed registering expressions in push/pop

* Reused existing function

* Reverted reusing can_propagate

* Added decide-callback to user-propagator

* Refactoring

* Fixed index

* Added bit2bool to the API
Fixed bug in user-propagator's decide callback

* Fixed typo
This commit is contained in:
Clemens Eisenhofer 2022-04-22 10:54:21 +02:00 • committed by GitHub
parent 0dd0fd26d4
commit 81189d6fdd
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 58 additions and 31 deletions
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1
src/api/api_bv.cpp
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@ -102,6 +102,7 @@ Z3_ast Z3_API NAME(Z3_context c, unsigned i, Z3_ast n) { \
MK_BV_PUNARY(Z3_mk_sign_ext, OP_SIGN_EXT);
MK_BV_PUNARY(Z3_mk_zero_ext, OP_ZERO_EXT);
MK_BV_PUNARY(Z3_mk_repeat, OP_REPEAT);
MK_BV_PUNARY(Z3_mk_bit2bool, OP_BIT2BOOL);
MK_BV_PUNARY(Z3_mk_rotate_left, OP_ROTATE_LEFT);
MK_BV_PUNARY(Z3_mk_rotate_right, OP_ROTATE_RIGHT);
MK_BV_PUNARY(Z3_mk_int2bv, OP_INT2BV);

1
src/api/c++/z3++.h
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@ -1359,6 +1359,7 @@ namespace z3 {
friend expr operator~(expr const & a);
expr extract(unsigned hi, unsigned lo) const { Z3_ast r = Z3_mk_extract(ctx(), hi, lo, *this); ctx().check_error(); return expr(ctx(), r); }
expr bit2bool(unsigned i) const { Z3_ast r = Z3_mk_bit2bool(ctx(), i, *this); ctx().check_error(); return expr(ctx(), r); }
unsigned lo() const { assert (is_app() && Z3_get_decl_num_parameters(ctx(), decl()) == 2); return static_cast<unsigned>(Z3_get_decl_int_parameter(ctx(), decl(), 1)); }
unsigned hi() const { assert (is_app() && Z3_get_decl_num_parameters(ctx(), decl()) == 2); return static_cast<unsigned>(Z3_get_decl_int_parameter(ctx(), decl(), 0)); }

22
src/api/z3_api.h
View file

@ -2914,6 +2914,16 @@ extern "C" {
def_API('Z3_mk_repeat', AST, (_in(CONTEXT), _in(UINT), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_repeat(Z3_context c, unsigned i, Z3_ast t1);
/**
\brief Extracts the bit at position \ccode{i} of a bit-vector and
yields a boolean.
The node \c t1 must have a bit-vector sort.
def_API('Z3_mk_bit2bool', AST, (_in(CONTEXT), _in(UINT), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_bit2bool(Z3_context c, unsigned i, Z3_ast t1);
/**
\brief Shift left.
@ -6755,16 +6765,16 @@ extern "C" {
void Z3_API Z3_solver_propagate_diseq(Z3_context c, Z3_solver s, Z3_eq_eh eq_eh);
/**
* \brief register a callback when a new expression with a registered function is used by the solver
* The registered function appears at the top level and is created using \ref Z3_propagate_solver_declare.
\brief register a callback when a new expression with a registered function is used by the solver
The registered function appears at the top level and is created using \ref Z3_propagate_solver_declare.
*/
void Z3_API Z3_solver_propagate_created(Z3_context c, Z3_solver s, Z3_created_eh created_eh);
/**
* \brief register a callback when a the solver decides to split on a registered expression
* The callback may set passed expression to another registered expression which will be selected instead.
* In case the expression is a bitvector the bit to split on is determined by the bit argument and the
* truth-value to try first is given by is_pos
\brief register a callback when the solver decides to split on a registered expression.
The callback may set the passed expression to another registered expression which will be selected instead.
In case the expression is a bitvector the bit to split on is determined by the bit argument and the
truth-value to try first is given by is_pos. In case the truth value is undefined the solver will decide.
*/
void Z3_API Z3_solver_propagate_decide(Z3_context c, Z3_solver s, Z3_decide_eh decide_eh);