#if !defined(_M_I86)
    //  The 32-bit compiler

    #define __far
    #define __near
    #define __pascal
    #define __loadds
#endif


typedef char *        pchar_t;
typedef const char *  pcchar_t;

typedef void * ( __cdecl * Alloc_t )( size_t );
typedef void   ( __cdecl * Free_t  )( void * );


#ifdef  __cplusplus
extern "C"
#endif


#ifdef _CRTBLD
_CRTIMP pchar_t __cdecl __unDName (
#else
pchar_t __cdecl unDName (
#endif
                            pchar_t,        // User supplied buffer (or NULL)
                            pcchar_t,       // Input decorated name
                            int,            // Maximum length of user buffer
                            Alloc_t,        // Address of heap allocator
                            Free_t,         // Address of heap deallocator
                            unsigned short  // Feature disable flags
                        );

/*
 *  The user may provide a buffer into which the undecorated declaration
 *  is to be placed, in which case, the length field must be specified.
 *  The length is the maximum number of characters (including the terminating
 *  NULL character) which may be written into the user buffer.
 *
 *  If the output buffer is NULL, the length field is ignored, and the
 *  undecorator will allocate a buffer exactly large enough to hold the
 *  resulting declaration.  It is the users responsibility to deallocate
 *  this buffer.
 *
 *  The user may also supply the allocator and deallocator functions if
 *  they wish.  If they do, then all heap actions performed by the routine
 *  will use the provided heap functions.
 *
 *  If the allocator address is NULL, then the routine will default to using
 *  the standard allocator and deallocator functions, 'malloc' and 'free'.
 *
 *  If an error occurs internally, then the routine will return NULL.  If
 *  it was successful, it will return the buffer address provided by the
 *  user, or the address of the buffer allocated on their behalf, if they
 *  specified a NULL buffer address.
 *
 *  If a given name does not have a valid undecoration, the original name
 *  is returned in the output buffer.
 *
 *  Fine selection of a number of undecorator attributes is possible, by
 *  specifying flags (bit-fields) to disable the production of parts of the
 *  complete declaration.  The flags may be OR'ed together to select multiple
 *  disabling of selected fields.  The fields and flags are as follows :-
 */

#define UNDNAME_COMPLETE                (0x0000)    // Enable full undecoration

#define UNDNAME_NO_LEADING_UNDERSCORES  (0x0001)    // Remove leading underscores from MS extended keywords
#define UNDNAME_NO_MS_KEYWORDS          (0x0002)    // Disable expansion of MS extended keywords
#define UNDNAME_NO_FUNCTION_RETURNS     (0x0004)    // Disable expansion of return type for primary declaration
#define UNDNAME_NO_ALLOCATION_MODEL     (0x0008)    // Disable expansion of the declaration model
#define UNDNAME_NO_ALLOCATION_LANGUAGE  (0x0010)    // Disable expansion of the declaration language specifier
  #define   UNDNAME_NO_MS_THISTYPE          (0x0020)    /* NYI */   // Disable expansion of MS keywords on the 'this' type for primary declaration
  #define   UNDNAME_NO_CV_THISTYPE          (0x0040)    /* NYI */   // Disable expansion of CV modifiers on the 'this' type for primary declaration
#define UNDNAME_NO_THISTYPE             (0x0060)    // Disable all modifiers on the 'this' type
#define UNDNAME_NO_ACCESS_SPECIFIERS    (0x0080)    // Disable expansion of access specifiers for members
#define UNDNAME_NO_THROW_SIGNATURES     (0x0100)    // Disable expansion of 'throw-signatures' for functions and pointers to functions
#define UNDNAME_NO_MEMBER_TYPE          (0x0200)    // Disable expansion of 'static' or 'virtual'ness of members
#define UNDNAME_NO_RETURN_UDT_MODEL     (0x0400)    // Disable expansion of MS model for UDT returns
#define UNDNAME_32_BIT_DECODE           (0x0800)    // Undecorate 32-bit decorated names
#define UNDNAME_NAME_ONLY               (0x1000)    // Crack only the name for primary declaration;
                                                    //  return just [scope::]name.  Does expand template params
#define UNDNAME_TYPE_ONLY               (0x2000)    // Input is just a type encoding; compose an abstract declarator