diff options
author | Guido van Rossum <guido@python.org> | 1997-08-14 19:50:37 (GMT) |
---|---|---|
committer | Guido van Rossum <guido@python.org> | 1997-08-14 19:50:37 (GMT) |
commit | 8f06247b51924245ff1777bbf46aee9f38237c8e (patch) | |
tree | 3c1e9314d5255f9d17bc311f7f9588037308e1c8 /Doc/libarray.tex | |
parent | 98046b90d02f6751efaf93946188fe572490b8be (diff) | |
download | cpython-8f06247b51924245ff1777bbf46aee9f38237c8e.zip cpython-8f06247b51924245ff1777bbf46aee9f38237c8e.tar.gz cpython-8f06247b51924245ff1777bbf46aee9f38237c8e.tar.bz2 |
Added buffer_info() docs.
Diffstat (limited to 'Doc/libarray.tex')
-rw-r--r-- | Doc/libarray.tex | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Doc/libarray.tex b/Doc/libarray.tex index eb76251..145bb4f 100644 --- a/Doc/libarray.tex +++ b/Doc/libarray.tex @@ -60,6 +60,16 @@ The length in bytes of one array item in the internal representation. Append a new item with value \var{x} to the end of the array. \end{funcdesc} +\begin{funcdesc}{buffer_info}{} +Return a tuple \code{(\var{address}, var{length})} giving the current +memory address and the length in bytes of the buffer used to hold +array's contents. This is occasionally useful when working with +low-level (and inherently unsafe) I/O interfaces that require memory +addresses, such as certain \code{ioctl} operations. The returned +numbers are valid as long as the array exists and no length-changing +operations are applied to it. +\end{funcdesc} + \begin{funcdesc}{byteswap}{x} ``Byteswap'' all items of the array. This is only supported for integer values. It is useful when reading data from a file written |