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
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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 mkLastIndexOf method and CharSort support to Java API
- Added mkLastIndexOf method to Context.java for extracting last index of sub-string
- Added Z3_CHAR_SORT case to Sort.java's create() method switch statement
- Added test file to verify both fixes work correctly
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Fix author field in test file
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
* Delete examples/java/TestJavaAPICompleteness.java
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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>
When the inputs are already the same sort, we can skip most of the
coercion logic and just return.
Currently, `_coerce_exprs` is by far the most expensive part of
building up many common Z3 ASTs, so this fast-path is a substantial
speedup for many use-cases.
