| ### Compilation failed: | |
| error: 3: '++' cannot operate on 'float4x4' | |
| error: 4: '--' cannot operate on 'float3' | |
| error: 5: '++' cannot operate on 'float4x4' | |
| error: 6: '--' cannot operate on 'float3' | |
| error: 7: '!' cannot operate on 'int' | |
| error: 8: '+' cannot operate on 'Foo' | |
| error: 9: '-' cannot operate on 'Foo' | |
| 7 errors |