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2aa62f2b | 1 | /** @file\r |
a430bdb1 | 2 | Common "Standard" Definitions.\r |
2aa62f2b | 3 | \r |
a430bdb1 | 4 | The files stddef.h and stdlib.h are "catch all" headers for definitions and declarations\r |
5 | that don't fit well in the other headers. There are two separate header files because\r | |
6 | the contents of <stddef.h> are valid in both freestanding and hosted environment, while the\r | |
7 | header <stdlib.h> contains elements that are only valid in a hosted environment.\r | |
2aa62f2b | 8 | \r |
a430bdb1 | 9 | This means that the elements in this file may not impose dependencies on headers other than\r |
10 | <float.h>, <iso646.h>, <limits.h>, <stdarg.h>, <stdbool.h>, and (of course) <sys/EfiCdefs.h>.\r | |
2aa62f2b | 11 | \r |
a430bdb1 | 12 | Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>\r |
13 | This program and the accompanying materials are licensed and made available under\r | |
14 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
15 | The full text of the license may be found at\r | |
16 | http://opensource.org/licenses/bsd-license.\r | |
17 | \r | |
18 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
19 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
2aa62f2b | 20 | **/\r |
21 | #ifndef _STDDEF_H\r | |
22 | #define _STDDEF_H\r | |
23 | #include <sys/EfiCdefs.h>\r | |
24 | \r | |
2aa62f2b | 25 | #ifdef _EFI_PTRDIFF_T_\r |
a430bdb1 | 26 | /** ptrdiff_t is the signed integer type of the result of subtracting two pointers. **/\r |
2aa62f2b | 27 | typedef _EFI_PTRDIFF_T_ ptrdiff_t;\r |
28 | #undef _EFI_PTRDIFF_T_\r | |
29 | #endif\r | |
30 | \r | |
2aa62f2b | 31 | #ifdef _EFI_SIZE_T_\r |
a430bdb1 | 32 | /** size_t is the unsigned integer type of the result of the sizeof operator. **/\r |
2aa62f2b | 33 | typedef _EFI_SIZE_T_ size_t;\r |
34 | #undef _EFI_SIZE_T_\r | |
35 | #undef _BSD_SIZE_T_\r | |
36 | #endif\r | |
37 | \r | |
2aa62f2b | 38 | #ifndef __cplusplus\r |
39 | #ifdef _EFI_WCHAR_T\r | |
a430bdb1 | 40 | /** wchar_t is an integer type whose range of values can represent distinct\r |
41 | codes for all members of the largest extended character set specified among\r | |
42 | the supported locales. The null character shall have the code value zero.\r | |
43 | **/\r | |
2aa62f2b | 44 | typedef _EFI_WCHAR_T wchar_t;\r |
45 | #undef _EFI_WCHAR_T\r | |
46 | #undef _BSD_WCHAR_T_\r | |
47 | #endif\r | |
48 | #endif\r | |
49 | \r | |
a430bdb1 | 50 | /** @def NULL\r |
51 | A macro that expands to a null pointer constant.<BR>\r | |
2aa62f2b | 52 | NULL is defined in MdePkg/Include/Base.h which is automatically included\r |
53 | by the EDK II build tools.\r | |
54 | **/\r | |
55 | \r | |
a430bdb1 | 56 | /** The offsetof macro determines the offset of the beginning of a structure\r |
57 | member from the beginning of the structure.\r | |
58 | \r | |
59 | The macro expands to an integer constant expression that has type size_t,\r | |
60 | the value of which is the offset in bytes, to the structure member (Member),\r | |
61 | from the beginning of its structure (StrucName).\r | |
2aa62f2b | 62 | \r |
63 | Alliased to OFFSET_OF which is defined in MdePkg/Include/Base.h which is\r | |
64 | automatically included by the EDK II build tools.\r | |
65 | **/\r | |
a430bdb1 | 66 | #define offsetof(StrucName, Member) OFFSET_OF(StrucName, Member)\r |
2aa62f2b | 67 | \r |
68 | #endif /* _STDDEF_H */\r |