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1 | /** @file\r |
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2 | Common "Standard" Definitions.\r |
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3 | \r |
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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 |
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8 | \r |
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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 |
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11 | \r |
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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 |
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20 | **/\r |
| 21 | #ifndef _STDDEF_H\r |
| 22 | #define _STDDEF_H\r |
| 23 | #include <sys/EfiCdefs.h>\r |
| 24 | \r |
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25 | #ifdef _EFI_PTRDIFF_T_\r |
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26 | /** ptrdiff_t is the signed integer type of the result of subtracting two pointers. **/\r |
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27 | typedef _EFI_PTRDIFF_T_ ptrdiff_t;\r |
| 28 | #undef _EFI_PTRDIFF_T_\r |
| 29 | #endif\r |
| 30 | \r |
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31 | #ifdef _EFI_SIZE_T_\r |
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32 | /** size_t is the unsigned integer type of the result of the sizeof operator. **/\r |
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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 |
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38 | #ifndef __cplusplus\r |
| 39 | #ifdef _EFI_WCHAR_T\r |
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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 |
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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 |
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50 | /** @def NULL\r |
| 51 | A macro that expands to a null pointer constant.<BR>\r |
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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 |
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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 |
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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 |
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66 | #define offsetof(StrucName, Member) OFFSET_OF(StrucName, Member)\r |
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67 | \r |
| 68 | #endif /* _STDDEF_H */\r |
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