Author: Armin Rigo <[email protected]>
Branch: slicing
Changeset: r1138:91d651f7cdce
Date: 2013-02-10 17:30 +0100
http://bitbucket.org/cffi/cffi/changeset/91d651f7cdce/
Log: Document
diff --git a/doc/source/index.rst b/doc/source/index.rst
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -1274,9 +1274,9 @@
| | anything on which | precision `(***)`| |
| | float() works | | |
+---------------+------------------------+------------------+----------------+
-| pointers | another <cdata> with | a <cdata> | ``[]``, ``+``, |
-| | a compatible type (i.e.| | ``-``, bool() |
-| | same type or ``char*`` | | |
+| pointers | another <cdata> with | a <cdata> |``[]`` `(****)`,|
+| | a compatible type (i.e.| |``+``, ``-``, |
+| | same type or ``char*`` | |bool() |
| | or ``void*``, or as an | | |
| | array instead) `(*)` | | |
+---------------+------------------------+ | |
@@ -1292,9 +1292,9 @@
| function | same as pointers | | bool(), |
| pointers | | | call `(**)` |
+---------------+------------------------+------------------+----------------+
-| arrays | a list or tuple of | a <cdata> | len(), iter(), |
-| | items | | ``[]``, |
-| | | | ``+``, ``-`` |
+| arrays | a list or tuple of | a <cdata> |len(), iter(), |
+| | items | |``[]`` `(****)`,|
+| | | |``+``, ``-`` |
+---------------+------------------------+ +----------------+
| ``char[]`` | same as arrays, or a | | len(), iter(), |
| | Python string | | ``[]``, ``+``, |
@@ -1349,6 +1349,15 @@
without any precision loss, you need to define and use a family of C
functions like ``long double add(long double a, long double b);``.
+.. versionadded:: 0.6
+ `(****)` Supports simple slices as well: ``x[start:stop]`` gives another
+ cdata object that is a "view" of all items from ``start`` to ``stop``.
+ It is a cdata of type "array" (so e.g. passing it as an argument to a
+ C function would just convert it to a pointer to the ``start`` item).
+ As with indexing, negative bounds mean really negative indices, like in
+ C. As for slice assignment, it accepts any iterable, including a list
+ of items or another array-like cdata object, but the length must match.
+
Reference: verifier
-------------------
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