> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/gpcscripting/gpc-script-guide/reference/constants/32-bit-masks.md).

# 32-bit masks

One-bit masks spanning all 32 positions of a Live integer.

### Constants

<table data-search="false"><thead><tr><th>Name</th><th align="right">Value</th><th>Description</th></tr></thead><tbody><tr><td><code>BITMASK_1</code></td><td align="right"><code>1</code></td><td>32-bit mask with bit 0 set.</td></tr><tr><td><code>BITMASK_2</code></td><td align="right"><code>2</code></td><td>32-bit mask with bit 1 set.</td></tr><tr><td><code>BITMASK_3</code></td><td align="right"><code>4</code></td><td>32-bit mask with bit 2 set.</td></tr><tr><td><code>BITMASK_4</code></td><td align="right"><code>8</code></td><td>32-bit mask with bit 3 set.</td></tr><tr><td><code>BITMASK_5</code></td><td align="right"><code>16</code></td><td>32-bit mask with bit 4 set.</td></tr><tr><td><code>BITMASK_6</code></td><td align="right"><code>32</code></td><td>32-bit mask with bit 5 set.</td></tr><tr><td><code>BITMASK_7</code></td><td align="right"><code>64</code></td><td>32-bit mask with bit 6 set.</td></tr><tr><td><code>BITMASK_8</code></td><td align="right"><code>128</code></td><td>32-bit mask with bit 7 set.</td></tr><tr><td><code>BITMASK_9</code></td><td align="right"><code>256</code></td><td>32-bit mask with bit 8 set.</td></tr><tr><td><code>BITMASK_10</code></td><td align="right"><code>512</code></td><td>32-bit mask with bit 9 set.</td></tr><tr><td><code>BITMASK_11</code></td><td align="right"><code>1024</code></td><td>32-bit mask with bit 10 set.</td></tr><tr><td><code>BITMASK_12</code></td><td align="right"><code>2048</code></td><td>32-bit mask with bit 11 set.</td></tr><tr><td><code>BITMASK_13</code></td><td align="right"><code>4096</code></td><td>32-bit mask with bit 12 set.</td></tr><tr><td><code>BITMASK_14</code></td><td align="right"><code>8192</code></td><td>32-bit mask with bit 13 set.</td></tr><tr><td><code>BITMASK_15</code></td><td align="right"><code>16384</code></td><td>32-bit mask with bit 14 set.</td></tr><tr><td><code>BITMASK_16</code></td><td align="right"><code>32768</code></td><td>32-bit mask with bit 15 set.</td></tr><tr><td><code>BITMASK_17</code></td><td align="right"><code>65536</code></td><td>32-bit mask with bit 16 set.</td></tr><tr><td><code>BITMASK_18</code></td><td align="right"><code>131072</code></td><td>32-bit mask with bit 17 set.</td></tr><tr><td><code>BITMASK_19</code></td><td align="right"><code>262144</code></td><td>32-bit mask with bit 18 set.</td></tr><tr><td><code>BITMASK_20</code></td><td align="right"><code>524288</code></td><td>32-bit mask with bit 19 set.</td></tr><tr><td><code>BITMASK_21</code></td><td align="right"><code>1048576</code></td><td>32-bit mask with bit 20 set.</td></tr><tr><td><code>BITMASK_22</code></td><td align="right"><code>2097152</code></td><td>32-bit mask with bit 21 set.</td></tr><tr><td><code>BITMASK_23</code></td><td align="right"><code>4194304</code></td><td>32-bit mask with bit 22 set.</td></tr><tr><td><code>BITMASK_24</code></td><td align="right"><code>8388608</code></td><td>32-bit mask with bit 23 set.</td></tr><tr><td><code>BITMASK_25</code></td><td align="right"><code>16777216</code></td><td>32-bit mask with bit 24 set.</td></tr><tr><td><code>BITMASK_26</code></td><td align="right"><code>33554432</code></td><td>32-bit mask with bit 25 set.</td></tr><tr><td><code>BITMASK_27</code></td><td align="right"><code>67108864</code></td><td>32-bit mask with bit 26 set.</td></tr><tr><td><code>BITMASK_28</code></td><td align="right"><code>134217728</code></td><td>32-bit mask with bit 27 set.</td></tr><tr><td><code>BITMASK_29</code></td><td align="right"><code>268435456</code></td><td>32-bit mask with bit 28 set.</td></tr><tr><td><code>BITMASK_30</code></td><td align="right"><code>536870912</code></td><td>32-bit mask with bit 29 set.</td></tr><tr><td><code>BITMASK_31</code></td><td align="right"><code>1073741824</code></td><td>32-bit mask with bit 30 set.</td></tr><tr><td><code>BITMASK_32</code></td><td align="right"><code>-2147483648</code></td><td>32-bit mask with bit 31 set.</td></tr></tbody></table>

### Example

```gpc
int flags;
main {
    flags = flags | BITMASK_3;
    if((flags & BITMASK_3) == BITMASK_3) set_val(TRACE_1, 1);
}
```

Back to all constant categories.


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