1  #ifndef Py_LIMITED_API
       2  #ifndef Py_INTERNAL_ACCU_H
       3  #define Py_INTERNAL_ACCU_H
       4  #ifdef __cplusplus
       5  extern "C" {
       6  #endif
       7  
       8  /*** This is a private API for use by the interpreter and the stdlib.
       9   *** Its definition may be changed or removed at any moment.
      10   ***/
      11  
      12  #ifndef Py_BUILD_CORE
      13  #  error "this header requires Py_BUILD_CORE define"
      14  #endif
      15  
      16  /*
      17   * A two-level accumulator of unicode objects that avoids both the overhead
      18   * of keeping a huge number of small separate objects, and the quadratic
      19   * behaviour of using a naive repeated concatenation scheme.
      20   */
      21  
      22  #undef small /* defined by some Windows headers */
      23  
      24  typedef struct {
      25      PyObject *large;  /* A list of previously accumulated large strings */
      26      PyObject *small;  /* Pending small strings */
      27  } _PyAccu;
      28  
      29  PyAPI_FUNC(int) _PyAccu_Init(_PyAccu *acc);
      30  PyAPI_FUNC(int) _PyAccu_Accumulate(_PyAccu *acc, PyObject *unicode);
      31  PyAPI_FUNC(PyObject *) _PyAccu_FinishAsList(_PyAccu *acc);
      32  PyAPI_FUNC(PyObject *) _PyAccu_Finish(_PyAccu *acc);
      33  PyAPI_FUNC(void) _PyAccu_Destroy(_PyAccu *acc);
      34  
      35  #ifdef __cplusplus
      36  }
      37  #endif
      38  #endif /* !Py_INTERNAL_ACCU_H */
      39  #endif /* !Py_LIMITED_API */