Use %zd printf format in the C code of Python #93202
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type-bug
An unexpected behavior, bug, or error
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vstinner
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May 25, 2022
Python now always use the ``%zu`` and ``%zd`` printf formats to format a size_t or Py_ssize_t number. Building Python 3.12 requires a C11 compiler, so these printf formats are now always supported. * PyObject_Print() and _PyObject_Dump() now use the printf %zd format to display an object reference count. * Update PY_FORMAT_SIZE_T comment. * Remove outdated notes about the %zd format in PyBytes_FromFormat() and PyUnicode_FromFormat() documentations. * configure no longer checks for the %zd format and no longer defines PY_FORMAT_SIZE_T macro in pyconfig.h. * pymacconfig.h no longer undefines PY_FORMAT_SIZE_T: macOS 10.4 is no longer supported. Python 3.12 now requires macOS 10.6 (Snow Leopard) or newer.
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Fixed by #93201 |
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vstinner commentedMay 25, 2022
Python 3.12 now requires a C11 compiler. We don't have to check if the
%zdprintf format is supported: it's available since C99. Python 3.6 requires a C99 compiler to build.The PY_FORMAT_SIZE_T macro was already updated to be always defined as "z": commit d765d81.
This issue is a follow-up of the previous issue #81962.
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