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Bugs #1668032, #1668036, #1669304: clarify behavior of PyMem_Realloc and _Resize.

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Georg Brandl 2007-03-02 20:30:14 +00:00
parent 20e1199fbe
commit b5e3f0dfc6
1 changed files with 5 additions and 2 deletions
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7
Doc/api/memory.tex
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@ -100,7 +100,9 @@ are available for allocating and releasing memory from the Python heap:
memory block is resized but is not freed, and the returned pointer
is non-\NULL. Unless \var{p} is \NULL, it must have been
returned by a previous call to \cfunction{PyMem_Malloc()} or
\cfunction{PyMem_Realloc()}.
\cfunction{PyMem_Realloc()}. If the request fails,
\cfunction{PyMem_Realloc()} returns \NULL{} and \var{p} remains a
valid pointer to the previous memory area.
\end{cfuncdesc}
\begin{cfuncdesc}{void}{PyMem_Free}{void *p}
@ -124,7 +126,8 @@ that \var{TYPE} refers to any C type.
\begin{cfuncdesc}{\var{TYPE}*}{PyMem_Resize}{void *p, TYPE, size_t n}
Same as \cfunction{PyMem_Realloc()}, but the memory block is resized
to \code{(\var{n} * sizeof(\var{TYPE}))} bytes. Returns a pointer
cast to \ctype{\var{TYPE}*}.
cast to \ctype{\var{TYPE}*}. On return, \var{p} will be a pointer to
the new memory area, or \NULL{} in the event of failure.
\end{cfuncdesc}
\begin{cfuncdesc}{void}{PyMem_Del}{void *p}