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  r78760 | georg.brandl | 2010-03-07 16:23:59 +0100 (So, 07 Mär 2010) | 1 line

  #5341: more built-in vs builtin fixes.
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  r78771 | georg.brandl | 2010-03-07 21:58:31 +0100 (So, 07 Mär 2010) | 1 line

  #8085: The function is called PyObject_NewVar, not PyObject_VarNew.
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  r78772 | georg.brandl | 2010-03-07 22:12:28 +0100 (So, 07 Mär 2010) | 1 line

  #8039: document conditional expressions better, giving them their own section.
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  r78773 | georg.brandl | 2010-03-07 22:32:06 +0100 (So, 07 Mär 2010) | 1 line

  #8044: document Py_{Enter,Leave}RecursiveCall functions.
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  r78802 | georg.brandl | 2010-03-08 17:28:40 +0100 (Mo, 08 Mär 2010) | 1 line

  Fix typo.
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  r78922 | georg.brandl | 2010-03-13 14:41:58 +0100 (Sa, 13 Mär 2010) | 1 line

  Update for new download location.
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  r78952 | georg.brandl | 2010-03-14 10:55:08 +0100 (So, 14 Mär 2010) | 1 line

  #8137: add iso-8859-16 to the standard encodings table.
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This commit is contained in:
Georg Brandl 2010-03-14 10:56:14 +00:00
parent c0e22b7889
commit 93dc9eb2a3
10 changed files with 114 additions and 65 deletions
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30
Doc/c-api/exceptions.rst
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@ -471,6 +471,36 @@ Exception Objects
This steals a reference to *ctx*.
Recursion Control
=================
These two functions provide a way to perform safe recursive calls at the C
level, both in the core and in extension modules. They are needed if the
recursive code does not necessarily invoke Python code (which tracks its
recursion depth automatically).
.. cfunction:: int Py_EnterRecursiveCall(char *where)
Marks a point where a recursive C-level call is about to be performed.
If :const:`USE_STACKCHECK` is defined, this function checks if the the OS
stack overflowed using :cfunc:`PyOS_CheckStack`. In this is the case, it
sets a :exc:`MemoryError` and returns a nonzero value.
The function then checks if the recursion limit is reached. If this is the
case, a :exc:`RuntimeError` is set and a nonzero value is returned.
Otherwise, zero is returned.
*where* should be a string such as ``" in instance check"`` to be
concatenated to the :exc:`RuntimeError` message caused by the recursion depth
limit.
.. cfunction:: void Py_LeaveRecursiveCall()
Ends a :cfunc:`Py_EnterRecursiveCall`. Must be called once for each
*successful* invocation of :cfunc:`Py_EnterRecursiveCall`.
.. _standardexceptions:
Standard Exceptions