libffi/src/types.c

   1 /* -----------------------------------------------------------------------
   2    types.c - Copyright (c) 1996, 1998  Red Hat, Inc.
   3
   4    Predefined ffi_types needed by libffi.
   5
   6    Permission is hereby granted, free of charge, to any person obtaining
   7    a copy of this software and associated documentation files (the
   8    ``Software''), to deal in the Software without restriction, including
   9    without limitation the rights to use, copy, modify, merge, publish,
  10    distribute, sublicense, and/or sell copies of the Software, and to
  11    permit persons to whom the Software is furnished to do so, subject to
  12    the following conditions:
  13
  14    The above copyright notice and this permission notice shall be included
  15    in all copies or substantial portions of the Software.
  16
  17    THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20    IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21    OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22    ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23    OTHER DEALINGS IN THE SOFTWARE.
  24    ----------------------------------------------------------------------- */
  25
  26 #include <ffi.h>
  27 #include <ffi_common.h>
  28
  29 /* Type definitions */
  30
  31 #define FFI_TYPEDEF(name, type, id)             \
  32 struct struct_align_##name {                    \
  33   char c;                                       \
  34   type x;                                       \
  35 };                                              \
  36 ffi_type ffi_type_##name = {                    \
  37   sizeof(type),                                 \
  38   offsetof(struct struct_align_##name, x),      \
  39   id, NULL                                      \
  40 }
  41
  42 /* Size and alignment are fake here. They must not be 0. */
  43 ffi_type ffi_type_void = {
  44   1, 1, FFI_TYPE_VOID, NULL
  45 };
  46
  47 FFI_TYPEDEF(uint8, UINT8, FFI_TYPE_UINT8);
  48 FFI_TYPEDEF(sint8, SINT8, FFI_TYPE_SINT8);
  49 FFI_TYPEDEF(uint16, UINT16, FFI_TYPE_UINT16);
  50 FFI_TYPEDEF(sint16, SINT16, FFI_TYPE_SINT16);
  51 FFI_TYPEDEF(uint32, UINT32, FFI_TYPE_UINT32);
  52 FFI_TYPEDEF(sint32, SINT32, FFI_TYPE_SINT32);
  53 FFI_TYPEDEF(uint64, UINT64, FFI_TYPE_UINT64);
  54 FFI_TYPEDEF(sint64, SINT64, FFI_TYPE_SINT64);
  55
  56 FFI_TYPEDEF(pointer, void*, FFI_TYPE_POINTER);
  57
  58 FFI_TYPEDEF(float, float, FFI_TYPE_FLOAT);
  59 FFI_TYPEDEF(double, double, FFI_TYPE_DOUBLE);
  60 FFI_TYPEDEF(longdouble, long double, FFI_TYPE_LONGDOUBLE);