Alt-Ergo reports about " bool and int cannot be unified"
ID0002355: This issue was created automatically from Mantis Issue 2355. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0002355 | Frama-C | Plug-in > clang | public | 2018-02-05 | 2018-02-05 |
| Reporter | jens | Assigned To | virgile | Resolution | open |
| Priority | normal | Severity | minor | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C 16-Sulfur | Target Version | - | Fixed in Version | - |
Description :
If the attached simple C++ file is processed with the command line
frama-c -wp -wp-rte -warn-unsigned-downcast -wp-out equal.wp++ equal.cppthen the following error message occurs:
[wp] [Alt-Ergo] Goal typed__Z5equali_assert_rte_unsigned_downcast : Failed characters 4-22:typing error: bool and int cannot be unified
Could it be that Frama-Clang (or WP?) treats the return value of operator == as int instead of bool?
Additional Information :
The error message disappears when the option "-warn-unsigned-downcast" is omitted.