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Diffstat (limited to 'doc/lispref/hash.texi')
| -rw-r--r-- | doc/lispref/hash.texi | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/doc/lispref/hash.texi b/doc/lispref/hash.texi index 8781fad30cd..12c6a659079 100644 --- a/doc/lispref/hash.texi +++ b/doc/lispref/hash.texi @@ -150,11 +150,11 @@ multiplied by an approximation to this value. The default for @end table @end defun -You can also create a new hash table using the printed representation +You can also create a hash table using the printed representation for hash tables. The Lisp reader can read this printed representation, provided each element in the specified hash table has a valid read syntax (@pxref{Printed Representation}). For instance, -the following specifies a new hash table containing the keys +the following specifies a hash table containing the keys @code{key1} and @code{key2} (both symbols) associated with @code{val1} (a symbol) and @code{300} (a number) respectively. @@ -162,6 +162,11 @@ the following specifies a new hash table containing the keys #s(hash-table size 30 data (key1 val1 key2 300)) @end example +Note, however, that when using this in Emacs Lisp code, it's +undefined whether this creates a new hash table or not. If you want +to create a new hash table, you should always use +@code{make-hash-table} (@pxref{Self-Evaluating Forms}). + @noindent The printed representation for a hash table consists of @samp{#s} followed by a list beginning with @samp{hash-table}. The rest of the |