ID0000472: **This issue was created automatically from Mantis Issue 472. Further discussion may take place here.** --- | **Id** | **Project** | **Category** | **View** | **Due Date** | **Updated** | | --- | --- | --- | --- | --- | --- | | ID0000472 | Frama-C | Plug-in > Eva | public | 2010-05-07 | 2014-02-12 | | | | | | | | | --- | --- | --- | --- | --- | --- | | **Reporter** | yakobowski | **Assigned To** | pascal | **Resolution** | fixed | | **Priority** | normal | **Severity** | minor | **Reproducibility** | always | | **Platform** | - | **OS** | - | **OS Version** | - | | **Product Version** | Frama-C Boron-20100401 | **Target Version** | - | **Fixed in Version** | Frama-C Carbon-20101201-beta1 | ### Description : In the code below, the value analysis flags the comparison of fun with the NULL pointer as requiring a comparability assertion, while a comparison with the NULL pointer is always legal. void f(void); void g(void); extern int j; int main (void) { void (*fun)(void); int* p; if(j) fun = f; else fun = g; if (fun == 0) return 0; else return 1; } (The problem does not appear if 'fun' is a pointer to only one function, or when comparing non-functional pointers.)