-var-create - @ var1 - where is '@' documented??

Bogdan Slusarczyk
2007-05-25T13:40:49Z

Hi, can anybody tell me where I can find documentation for this syntax:
-var-create - *@* var1
Docs from http://sourceware.org/gdb/download/onlinedocs/ and from
http://sources.redhat.com/gdb/download/onlinedocs/gdb.html don't have
any mention about this feature. I suppose gdb has many undocumented
features, similar to above mentioned. Where I can find more accurate
documentation?

Regards,
Bogdan