The representation of the zero rcf numeral is nullptr, and the is_rational
and is_rational_function operations are not expecting to be called with
nullptr. But there isn't a way to test for that in the API, other than
checking if Z3_rcf_num_to_string returns "0".
This patch adds a couple conditions so that is_rational and
is_rational_function operations handle zero. Maybe this isn't the desired
change. For instance, the is_zero operation could instead be exposed in the
API and preconditions added to the relevant operations.
Signed-off-by: Josh Berdine <josh@berdine.net>
This is analogous to Z3_fpa_is_numeral_nan, Z3_fpa_is_numeral_inf, etc. and
can be needed to check that inputs are valid before calling those functions.
Signed-off-by: Josh Berdine <josh@berdine.net>
* Initial plan
* Add C API and Java bindings for str.replace_all, str.replace_re, str.replace_all_re
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Add test for new Java string replace operations
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Remove author field from test file header
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Delete examples/java/StringReplaceTest.java
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
* Initial plan
* Add finite_set_value_factory implementation
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Remove unused dl_decl_plugin variable and include
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Update copyright and add TODOs in finite_set_value_factory
Updated copyright information and added TODO comments for handling in finite_set_value_factory methods.
* Update copyright information in finite_set_value_factory.h
Updated copyright year from 2006 to 2025.
* Implement finite_set_value_factory using array_util to create singleton sets
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Simplify empty set creation in finite_set_value_factory
Refactor finite_set_value_factory to simplify empty set handling and remove array-specific logic.
* Change family ID for finite_set_value_factory
* Fix build error by restoring array_decl_plugin include and implementation
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Update finite_set_value_factory.h
* Add SASSERT for finite set check in factory
Added assertion to check if the sort is a finite set.
* Rename member variable from m_util to u
* Refactor finite_set_value_factory for value handling
* Use register_value instead of direct set insertion
Replaced direct insertion into set with register_value calls.
* Update finite_set_value_factory.cpp
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
- Add comment about safety of &levels[0] after n > 0 check
- Improve test documentation about SimpleSolver limitations
- Clarify that Units/NonUnits are more reliable for general use
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
- Add notes to Trail/TrailLevels about SimpleSolver requirement
- Clarify congruence closure API documentation
- Update test example with more detailed comments
- Make it clear when these functions may not work
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
- Add Units() - get unit clauses learned by solver
- Add NonUnits() - get non-unit clauses
- Add Trail() - get decision trail
- Add TrailLevels() - get trail decision levels
- Add CongruenceRoot() - get congruence class representative
- Add CongruenceNext() - get next element in congruence class
- Add CongruenceExplain() - explain why two terms are congruent
- Add test example demonstrating new APIs
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
- Fix all compilation errors in Go bindings
- Add missing type definitions (Pattern, ASTVector, ParamDescrs)
- Fix boolean comparisons to use bool() casts
- Fix Z3_app type casts using unsafe.Pointer
- Fix null symbol handling to use nil
- Fix unused variable in basic_example.go
- Fix CMake test target to run from examples/go directory
- Restore CI steps to build and test Go bindings
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
- Fix malformed z3.go with duplicate function body fragments
- Fix datatype.go to use Z3_del_constructor and Z3_del_constructor_list instead of non-existent inc_ref/dec_ref functions
- Remove non-existent Push/Pop methods from fixedpoint.go
- Fix CMake Go bindings targets quoting for proper LDFLAGS handling
- Add Go bindings support to ubuntu-cmake CI jobs
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
