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| -rw-r--r-- | Doc/ext/ext.tex | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Doc/ext/ext.tex b/Doc/ext/ext.tex index 683c11e790..8de3158480 100644 --- a/Doc/ext/ext.tex +++ b/Doc/ext/ext.tex @@ -1001,6 +1001,11 @@ exactly one format unit, it returns whatever object is described by that format unit. To force it to return a tuple of size 0 or one, parenthesize the format string. +When memory buffers are passed as parameters to supply data to build +objects, as for the \samp{s} and \samp{s\#} formats, the required data +is copied. Buffers provided by the caller are never referenced by the +objects created by \cfunction{Py_BuildValue()}. + In the following description, the quoted form is the format unit; the entry in (round) parentheses is the Python object type that the format unit will return; and the entry in [square] brackets is the type of @@ -1014,7 +1019,7 @@ used to make long format strings a tad more readable. \item[\samp{s} (string) {[char *]}] Convert a null-terminated C string to a Python object. If the C -string pointer is \NULL{}, \code{None} is returned. +string pointer is \NULL{}, \code{None} is used. \item[\samp{s\#} (string) {[char *, int]}] Convert a C string and its length to a Python object. If the C string |