> For the complete documentation index, see [llms.txt](https://docs.hex-rays.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hex-rays.com/8.5/developer-guide/idc/idc-api-reference/alphabetical-list-of-idc-functions/define_local_var.md).

# define\_local\_var

```
Create a local variable
     start, end - range of addresses for the local variable.
                  For the stack variables the end address is ignored.
                  If there is no function at 'start' then this function.
                  will fail.
     location  -  the variable location in the "[bp+xx]" form where xx is
                  a number. The location can also be specified
                  as a register name.
     name      -  name of the local variable
returns: 1-ok, 0-failure

success define_local_var(long start, long end, string location, string name);
```


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