Author: Armin Rigo <[email protected]>
Branch:
Changeset: r1115:c5c24774010b
Date: 2013-01-06 10:34 +0100
http://bitbucket.org/cffi/cffi/changeset/c5c24774010b/
Log: Mention uintptr_t too
diff --git a/doc/source/index.rst b/doc/source/index.rst
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -721,11 +721,14 @@
>>> int(x)
42
-To cast a pointer to an int, cast it to ``intptr_t``, which is defined
-by C to be a large enough integer type::
+To cast a pointer to an int, cast it to ``intptr_t`` or ``uintptr_t``,
+which are defined by C to be large enough integer types (example on 32
+bits)::
- >>> int(ffi.cast("intptr_t", pointer_cdata))
- 135812708
+ >>> int(ffi.cast("intptr_t", pointer_cdata)) # signed
+ -1340782304
+ >>> int(ffi.cast("uintptr_t", pointer_cdata)) # unsigned
+ 2954184992L
The initializer given as the optional second argument to ``ffi.new()``
can be mostly anything that you would use as an initializer for C code,
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