Author: Armin Rigo <[email protected]>
Branch:
Changeset: r409:c65dc7d34f2c
Date: 2012-06-17 16:38 +0200
http://bitbucket.org/cffi/cffi/changeset/c65dc7d34f2c/
Log: Note that the buffer only works to read/write in files opened in
binary mode.
diff --git a/doc/source/index.rst b/doc/source/index.rst
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -123,7 +123,7 @@
""")
image = ffi.new("pixel_t[]", 800*600)
- f = open('data', 'rb')
+ f = open('data', 'rb') # binary mode -- important
f.readinto(ffi.buffer(image))
f.close()
@@ -516,7 +516,7 @@
the array. Getting a buffer is useful because you can read from it
without an extra copy, or write into it to change the original value;
you can use for example ``file.write()`` and ``file.readinto()`` with
-such a buffer.
+such a buffer (for files opened in binary mode).
``ffi.typeof("C type" or cdata object)``: return an object of type
``<ctype>`` corresponding to the parsed string, or to the C type of the
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