# rotate\_left

```
rotate a value to the left (or right)
   arguments:
        x      - value to rotate
        count  - number of times to rotate. negative counter means
                 rotate to the right
        nbits  - number of bits to rotate
        offset - offset of the first bit to rotate
returns: the value with the specified field rotated
         all other bits are not modified
Thread-safe function.

long rotate_left(long value, long count, long nbits, long offset);

#define rotate_dword(x, count) rotate_left(x, count, 32, 0)
#define rotate_word(x, count)  rotate_left(x, count, 16, 0)
#define rotate_byte(x, count)  rotate_left(x, count,  8, 0)
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.hex-rays.com/8.4/developer-guide/idc/idc-api-reference/alphabetical-list-of-idc-functions/655.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
