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Diffstat (limited to 'Doc/ref/ref3.tex')
| -rw-r--r-- | Doc/ref/ref3.tex | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex index 233e416..028018d 100644 --- a/Doc/ref/ref3.tex +++ b/Doc/ref/ref3.tex @@ -339,21 +339,20 @@ There is currently a single intrinsic mapping type: \begin{description} \item[Dictionaries] -These represent finite sets of objects indexed by nearly arbitrary -values. The only types of values not acceptable as keys are values -containing lists or dictionaries or other mutable types that are -compared by value rather than by object identity, the reason being -that the efficient implementation of dictionaries requires a key's -hash value to remain constant. +These\obindex{dictionary} represent finite sets of objects indexed by +nearly arbitrary values. The only types of values not acceptable as +keys are values containing lists or dictionaries or other mutable +types that are compared by value rather than by object identity, the +reason being that the efficient implementation of dictionaries +requires a key's hash value to remain constant. Numeric types used for keys obey the normal rules for numeric comparison: if two numbers compare equal (e.g., \code{1} and \code{1.0}) then they can be used interchangeably to index the same dictionary entry. -Dictionaries are mutable; they are created by the \code{...} -notation (see section \ref{dict}, ``Dictionary Displays''). -\obindex{dictionary} -\obindex{mutable} +Dictionaries are \obindex{mutable}mutable; they are created by the +\code{\{...\}} notation (see section \ref{dict}, ``Dictionary +Displays''). The extension modules \module{dbm}\refstmodindex{dbm}, \module{gdbm}\refstmodindex{gdbm}, \module{bsddb}\refstmodindex{bsddb} @@ -362,12 +361,11 @@ provide additional examples of mapping types. \end{description} % Mapping types \item[Callable types] -These are the types to which the function call operation (see section -\ref{calls}, ``Calls'') can be applied: +These\obindex{callable} are the types to which the function call +operation (see section \ref{calls}, ``Calls'') can be applied: \indexii{function}{call} \index{invocation} \indexii{function}{argument} -\obindex{callable} \begin{description} |