Cil incorrectly cast arguments to switch to int
ID0000961: This issue was created automatically from Mantis Issue 961. Further discussion may take place here.
| Id | Project | Category | View | Due Date | Updated |
|---|---|---|---|---|---|
| ID0000961 | Frama-C | Kernel | public | 2011-09-13 | 2011-10-10 |
| Reporter | yakobowski | Assigned To | virgile | Resolution | fixed |
| Priority | normal | Severity | minor | Reproducibility | always |
| Platform | - | OS | - | OS Version | - |
| Product Version | Frama-C Carbon-20110201 | Target Version | - | Fixed in Version | Frama-C Nitrogen-20111001 |
Description :
The argument of a switch construct should not be cast to int (cf. 6.8.4.2.5). The following program gives a reproducible test case.
int main () { unsigned int v = 0xAAAAAAAA; switch(v) { case 0xAAAAAAAA: printf("taken\n"); return 0; default: printf("not taken\n"); return 1; } }
Result with frama-c -val (current version, that handles switch) __retres ? {1}
Compiled by gcc: ./a.out taken
GCC's output is the correct one.