definition of virtual function in subclass causes crash
ID0001973: This issue was created automatically from Mantis Issue 1973. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0001973 | Frama-Clang | Plug-in > clang | public | 2014-11-17 | 2015-02-15 |
| Reporter | Jochen | Assigned To | virgile | Resolution | fixed |
| Priority | normal | Severity | crash | Reproducibility | always |
| Platform | frama-c-Neon-20140301+dev-stance | OS | - | OS Version | xubuntu-cfe13.10 |
| Product Version | - | Target Version | - | Fixed in Version | - |
Description :
output:
Now output intermediate result 137.cpp:5:[fclang] failure: No usable assign operator for ::Rectangle [kernel] Current source was: 137.cpp:5 The full backtrace is: Raised at file "src/kernel/log.ml", line 524, characters 30-31 Called from file "src/kernel/log.ml", line 518, characters 9-16 Re-raised at file "src/kernel/log.ml", line 521, characters 15-16 Called from file "src/frama-clang/convert.ml", line 1660, characters 30-71 Called from file "src/frama-clang/convert.ml", line 1683, characters 15-39 Called from file "list.ml", line 74, characters 24-34 Called from file "src/frama-clang/convert.ml", line 1686, characters 14-50 Called from file "src/frama-clang/convert.ml", line 1921, characters 21-142 Called from file "list.ml", line 74, characters 24-34 Called from file "src/frama-clang/convert.ml", line 1998, characters 19-78 Called from file "src/frama-clang/convert.ml", line 2262, characters 21-48 Called from file "list.ml", line 74, characters 24-34 Called from file "src/frama-clang/convert.ml", line 2266, characters 4-79 Called from file "src/frama-clang/frama_Clang_register.ml", line 86, characters 13-36 Called from file "src/kernel/file.ml", line 1073, characters 10-43 Called from file "src/kernel/file.ml", line 1117, characters 23-30 Called from file "list.ml", line 74, characters 24-34 Called from file "src/kernel/file.ml", line 1114, characters 6-520 Called from file "src/kernel/file.ml", line 2179, characters 12-30 Called from file "src/kernel/file.ml", line 2264, characters 4-27 Called from file "src/kernel/ast.ml", line 111, characters 2-28 Called from file "src/kernel/ast.ml", line 123, characters 53-71 Called from file "src/kernel/boot.ml", line 29, characters 6-20 Called from file "src/kernel/cmdline.ml", line 761, characters 2-9 Called from file "src/kernel/cmdline.ml", line 216, characters 4-8
Plug-in fclang aborted: internal error.
Please report as 'crash' at http://bts.frama-c.com/.
Your Frama-C version is Neon-20140301+dev-stance.The problem disappears if (1) the "virtual" is removed in line 6, or (2) a copy of line 6 is inserted after line 2; the problem remains if (3) "area" is declared in class "Rectangle", too, but not as "virtual".