# V661\. Suspicious expression 'A\[B < C\]'\. Probably meant 'A\[B\] < C'\.

The analyzer has detected a suspicious code fragment where an array item is being accessed\. A logical expression is used as an array index\.

Here are examples of such expressions: Array\[A \>\= B\], Array\[A \!\= B\]\. Perhaps the closing square bracket is in the wrong place\. These errors usually occur through misprints\.

Consider an example of incorrect code:

```cpp
if ((bs->inventory[INVENTORY_ROCKETLAUNCHER] <= 0 || 
     bs->inventory[INVENTORY_ROCKETS < 10]) && <<== ERROR!
    (bs->inventory[INVENTORY_RAILGUN] <= 0 || 
     bs->inventory[INVENTORY_SLUGS] < 10)) {
        return qfalse;
}
```

This code is compilable but works incorrectly\. It's highly probable that the following text should be written instead:

```cpp
if ((bs->inventory[INVENTORY_ROCKETLAUNCHER] <= 0 || 
     bs->inventory[INVENTORY_ROCKETS] < 10) &&
    (bs->inventory[INVENTORY_RAILGUN] <= 0 || 
     bs->inventory[INVENTORY_SLUGS] < 10)) {
        return qfalse;
}
```

Note\. The analyzer doesn't generate the warning all the time a logical expression is placed inside square brackets\. It is sometimes justified\. For instance, such an exception is the case when an array consists of only two items:

```cpp
int A[2];
A[x != y] = 1;
```