1  
       2  /* Copyright (C) 1999-2023 by The D Language Foundation, All Rights Reserved
       3   * written by Walter Bright
       4   * https://www.digitalmars.com
       5   * Distributed under the Boost Software License, Version 1.0.
       6   * https://www.boost.org/LICENSE_1_0.txt
       7   * https://github.com/dlang/dmd/blob/master/src/dmd/root/dcompat.h
       8   */
       9  
      10  #pragma once
      11  
      12  #include "dsystem.h"
      13  
      14  /// Represents a D [ ] array
      15  template<typename T>
      16  struct DArray
      17  {
      18      size_t length;
      19      T *ptr;
      20  
      21      DArray() : length(0), ptr(NULL) { }
      22  
      23      DArray(size_t length_in, T *ptr_in)
      24          : length(length_in), ptr(ptr_in) { }
      25  };
      26  
      27  struct DString : public DArray<const char>
      28  {
      29      DString() : DArray<const char>() { }
      30  
      31      DString(const char *ptr)
      32          : DArray<const char>(ptr ? strlen(ptr) : 0, ptr) { }
      33  
      34      DString(size_t length, const char *ptr)
      35          : DArray<const char>(length, ptr) { }
      36  };
      37  
      38  /// Corresponding C++ type that maps to D size_t
      39  #if __APPLE__ && (__i386__ || __ppc__)
      40  // size_t is 'unsigned long', which makes it mangle differently than D's 'uint'
      41  typedef unsigned d_size_t;
      42  #elif MARS && DMD_VERSION >= 2079 && DMD_VERSION <= 2081 && \
      43          __APPLE__ && __SIZEOF_SIZE_T__ == 8
      44  // DMD versions between 2.079 and 2.081 mapped D ulong to uint64_t on OS X.
      45  typedef uint64_t d_size_t;
      46  #elif defined(__OpenBSD__) && !defined(__LP64__)
      47  // size_t is 'unsigned long', which makes it mangle differently than D's 'uint'
      48  typedef unsigned d_size_t;
      49  #else
      50  typedef size_t d_size_t;
      51  #endif
      52  
      53  /// Corresponding C++ type that maps to D bool
      54  #if __APPLE__ && __ppc__
      55  // bool is defined as an 'int', which does not match same size as D
      56  typedef uint8_t d_bool;
      57  #else
      58  typedef bool d_bool;
      59  #endif