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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2022-10-07 20:36:21 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-10-07 20:36:21 (GMT) |
| commit | 90f2c7992f3d3285bafa1eef6d0f8255ce8921c2 (patch) | |
| tree | 8c8b71e1a104af89e783e0c5b5bd5e61d978af1a /Doc | |
| parent | a3a3701fec80599f19da0faf6547cfbe58fcad13 (diff) | |
| download | cpython-90f2c7992f3d3285bafa1eef6d0f8255ce8921c2.zip cpython-90f2c7992f3d3285bafa1eef6d0f8255ce8921c2.tar.gz cpython-90f2c7992f3d3285bafa1eef6d0f8255ce8921c2.tar.bz2 | |
Add a warning message about PyOS_snprintf (GH-95993)
(cherry picked from commit c7b220499662f0c7a4cae51e33372f92ca7b1ee9)
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/c-api/conversion.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/c-api/conversion.rst b/Doc/c-api/conversion.rst index 9b9c4ff..fdb321f 100644 --- a/Doc/c-api/conversion.rst +++ b/Doc/c-api/conversion.rst @@ -28,7 +28,8 @@ not. The wrappers ensure that ``str[size-1]`` is always ``'\0'`` upon return. They never write more than *size* bytes (including the trailing ``'\0'``) into str. Both functions require that ``str != NULL``, ``size > 0``, ``format != NULL`` -and ``size < INT_MAX``. +and ``size < INT_MAX``. Note that this means there is no equivalent to the C99 +``n = snprintf(NULL, 0, ...)`` which would determine the necessary buffer size. The return value (*rv*) for these functions should be interpreted as follows: |