GNU Info

(librep.info)Creating Symbols

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Creating Symbols
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   It is possible to allocate symbols dynamically, this is normally only
necessary when the symbol is to be interned in a non-default obarray or
the symbol is a temporary object which should not be interned (for
example: labels in a compiler).

 - Function: make-symbol print-name
     This function creates and returns a new, uninterned, symbol whose
     print name is the string PRINT-NAME. Its value cell is void
     (undefined) and it will have an empty property list.

          (make-symbol "foo")
              => foo

 - Function: gensym
     This function returns a new, uninterned, symbol that has a unique
     print name.

          (gensym)
              => G0001
          
          (gensym)
              => G0002