ID0001718: **This issue was created automatically from Mantis Issue 1718. Further discussion may take place here.** --- | **Id** | **Project** | **Category** | **View** | **Due Date** | **Updated** | | --- | --- | --- | --- | --- | --- | | ID0001718 | Frama-C | Kernel | public | 2014-03-25 | 2015-11-04 | | | | | | | | | --- | --- | --- | --- | --- | --- | | **Reporter** | pascal | **Assigned To** | virgile | **Resolution** | open | | **Priority** | normal | **Severity** | feature | **Reproducibility** | always | | **Platform** | - | **OS** | - | **OS Version** | - | | **Product Version** | - | **Target Version** | - | **Fixed in Version** | - | ### Description : Note that I have never seen this feature actually used, but it appears to be supported by GCC and Clang. To reiterate, I have never seen code that does int t[a][a]; This report is only for the sake of completeness. ### Steps To Reproduce : ``` ~/gitlab/frama-c $ bin/toplevel.opt -print t.c [kernel] warning: cannot load plug-in `Aorai' (incompatible with Neon-20140301+dev). [kernel] warning: cannot load plug-in `Obfuscator' (incompatible with Neon-20140301+dev). [kernel] warning: cannot load plug-in `Report' (incompatible with Neon-20140301+dev). [kernel] warning: cannot load plug-in `Security_slicing' (incompatible with Neon-20140301+dev). [kernel] warning: cannot load plug-in `Wp' (incompatible with Neon-20140301+dev). [kernel] preprocessing with "gcc -C -E -I. t.c" t.c:4:[kernel] user error: Length of array is not a constant: a t.c:4:[kernel] warning: Variable-sized local variable t [kernel] user error: skipping file "t.c" that has errors. [kernel] Frama-C aborted: invalid user input. ~/gitlab/frama-c $ cat t.c int main(int c, char **v) { int a = 3; int t[a][a]; t[a-1][a-1] = 1; } ~/gitlab/frama-c $ gcc -pedantic -std=c99 t.c ~/gitlab/frama-c $ ```