ceph/src/boost/libs/python/doc/reference/ssize_t.qbk

   1 [section boost/python/ssize_t.hpp]
   2 [section Introduction]
   3 Python 2.5 introduces a new `Py_ssize_t` typedef and two related macros ([@http://www.python.org/dev/peps/pep-0353/ PEP 353]). The <boost/python/ssize_t.hpp> header imports these definitions into the `boost::python` namespace as `ssize_t`, `ssize_t_max`, and `ssize_t_min`. Appropriate definitions are provided for backward compatibility with previous Python versions.
   4 [endsect]
   5 [section Typedefs]
   6 Imports `Py_ssize_t` into the `boost::python` namespace if available, or provides an appropriate typedef for backward compatibility:
   7 ``
   8 #if PY_VERSION_HEX >= 0x02050000
   9 typedef Py_ssize_t ssize_t;
  10 #else
  11 typedef int ssize_t;
  12 #endif
  13 ``
  14 [endsect]
  15 [section Constants]
  16 Imports `PY_SSIZE_T_MAX` and `PY_SSIZE_T_MIN` as constants into the `boost::python` namespace if available, or provides appropriate constants for backward compatibility:
  17 ``
  18 #if PY_VERSION_HEX >= 0x02050000
  19 ssize_t const ssize_t_max = PY_SSIZE_T_MAX;
  20 ssize_t const ssize_t_min = PY_SSIZE_T_MIN;
  21 #else
  22 ssize_t const ssize_t_max = INT_MAX;
  23 ssize_t const ssize_t_min = INT_MIN;
  24 #endif
  25 ``
  26 [endsect]
  27 [endsect]