| [2] | 1 | /* $Id: kHlpAssert.h 119 2021-12-19 13:01:47Z bird $ */
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| 2 | /** @file
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| 3 | * kHlpAssert - Assertion Macros.
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| 4 | */
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| 5 |
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| 6 | /*
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| [29] | 7 | * Copyright (c) 2006-2007 Knut St. Osmundsen <bird-kStuff-spamix@anduin.net>
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| [2] | 8 | *
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| [29] | 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| [2] | 17 | *
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| [29] | 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| [2] | 20 | *
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| [29] | 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| [2] | 29 | */
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| 30 |
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| 31 | #ifndef ___kHlpAssert_h___
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| 32 | #define ___kHlpAssert_h___
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| 33 |
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| 34 | #include <k/kHlpDefs.h>
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| 35 |
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| 36 | #ifdef __cplusplus
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| 37 | extern "C" {
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| 38 | #endif
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| 39 |
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| 40 | /** @defgroup grp_kHlpAssert - Assertion Macros
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| 41 | * @addtogroup grp_kHlp
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| 42 | * @{ */
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| 43 |
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| 44 | /** @def K_STRICT
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| 45 | * Assertions are enabled when K_STRICT is \#defined. */
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| 46 |
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| 47 | /** @def kHlpAssertBreakpoint
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| 48 | * Emits a breakpoint instruction or somehow triggers a debugger breakpoint.
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| 49 | */
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| 50 | #ifdef _MSC_VER
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| 51 | # define kHlpAssertBreakpoint() do { __debugbreak(); } while (0)
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| [46] | 52 | #elif defined(__GNUC__) && K_OS == K_OS_SOLARIS && (K_ARCH == K_ARCH_AMD64 || K_ARCH == K_ARCH_X86_32)
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| 53 | # define kHlpAssertBreakpoint() do { __asm__ __volatile__ ("int $3"); } while (0)
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| 54 | #elif defined(__GNUC__) && (K_ARCH == K_ARCH_AMD64 || K_ARCH == K_ARCH_X86_32 || K_ARCH == K_ARCH_X86_16)
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| [2] | 55 | # define kHlpAssertBreakpoint() do { __asm__ __volatile__ ("int3"); } while (0)
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| [118] | 56 | #elif defined(__GNUC__) && (K_ARCH == K_ARCH_ARM_64 || K_ARCH == K_ARCH_ARM_32) /* probably not supported by older ARM CPUs */
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| 57 | # define kHlpAssertBreakpoint() do { __asm__ __volatile__ ("brk #0x1"); } while (0)
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| [119] | 58 | #elif defined(__GNUC__) && (K_ARCH == K_ARCH_SPARC_32)
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| 59 | # define kHlpAssertBreakpoint() do { __asm__ __volatile__ ("unimp 0"); } while (0) /*??*/
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| 60 | #elif defined(__GNUC__) && (K_ARCH == K_ARCH_SPARC_64)
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| 61 | # define kHlpAssertBreakpoint() do { __asm__ __volatile__ ("illtrap 0"); } while (0) /*??*/
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| [2] | 62 | #else
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| 63 | # error "Port Me"
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| 64 | #endif
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| 65 |
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| [70] | 66 | /** @def K_FUNCTION
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| 67 | * Undecorated function name macro expanded by the compiler.
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| 68 | */
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| 69 | #if defined(__GNUC__)
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| 70 | # define K_FUNCTION __func__
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| 71 | #else
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| 72 | # define K_FUNCTION __FUNCTION__
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| 73 | #endif
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| 74 |
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| [2] | 75 | #ifdef K_STRICT
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| 76 |
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| 77 | # define kHlpAssert(expr) \
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| 78 | do { \
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| 79 | if (!(expr)) \
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| 80 | { \
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| [70] | 81 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 82 | kHlpAssertBreakpoint(); \
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| [18] | 83 | } \
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| [2] | 84 | } while (0)
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| 85 |
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| [39] | 86 | # define kHlpAssertStmt(expr, stmt) \
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| [37] | 87 | do { \
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| 88 | if (!(expr)) \
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| 89 | { \
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| [70] | 90 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 91 | kHlpAssertBreakpoint(); \
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| 92 | stmt; \
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| 93 | } \
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| 94 | } while (0)
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| 95 |
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| [2] | 96 | # define kHlpAssertReturn(expr, rcRet) \
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| 97 | do { \
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| 98 | if (!(expr)) \
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| 99 | { \
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| [70] | 100 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 101 | kHlpAssertBreakpoint(); \
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| 102 | return (rcRet); \
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| [18] | 103 | } \
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| [2] | 104 | } while (0)
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| 105 |
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| [37] | 106 | # define kHlpAssertStmtReturn(expr, stmt, rcRet) \
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| 107 | do { \
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| 108 | if (!(expr)) \
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| 109 | { \
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| [70] | 110 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 111 | kHlpAssertBreakpoint(); \
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| 112 | stmt; \
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| 113 | return (rcRet); \
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| 114 | } \
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| 115 | } while (0)
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| 116 |
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| [2] | 117 | # define kHlpAssertReturnVoid(expr) \
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| 118 | do { \
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| 119 | if (!(expr)) \
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| 120 | { \
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| [70] | 121 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 122 | kHlpAssertBreakpoint(); \
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| 123 | return; \
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| [18] | 124 | } \
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| [2] | 125 | } while (0)
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| 126 |
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| [37] | 127 | # define kHlpAssertStmtReturnVoid(expr, stmt) \
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| 128 | do { \
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| 129 | if (!(expr)) \
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| 130 | { \
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| [70] | 131 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 132 | kHlpAssertBreakpoint(); \
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| 133 | stmt; \
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| 134 | return; \
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| 135 | } \
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| 136 | } while (0)
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| 137 |
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| [2] | 138 | # define kHlpAssertMsg(expr, msg) \
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| 139 | do { \
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| 140 | if (!(expr)) \
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| 141 | { \
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| [70] | 142 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 143 | kHlpAssertMsg2 msg; \
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| 144 | kHlpAssertBreakpoint(); \
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| [18] | 145 | } \
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| [2] | 146 | } while (0)
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| 147 |
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| [37] | 148 | # define kHlpAssertMsgStmt(expr, msg, stmt) \
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| 149 | do { \
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| 150 | if (!(expr)) \
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| 151 | { \
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| [70] | 152 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 153 | kHlpAssertMsg2 msg; \
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| 154 | kHlpAssertBreakpoint(); \
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| 155 | stmt; \
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| 156 | } \
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| 157 | } while (0)
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| 158 |
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| [2] | 159 | # define kHlpAssertMsgReturn(expr, msg, rcRet) \
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| 160 | do { \
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| 161 | if (!(expr)) \
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| 162 | { \
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| [70] | 163 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 164 | kHlpAssertMsg2 msg; \
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| 165 | kHlpAssertBreakpoint(); \
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| 166 | return (rcRet); \
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| [18] | 167 | } \
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| [2] | 168 | } while (0)
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| 169 |
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| [39] | 170 | # define kHlpAssertMsgStmtReturn(expr, msg, stmt, rcRet) \
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| [37] | 171 | do { \
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| 172 | if (!(expr)) \
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| 173 | { \
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| [70] | 174 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 175 | kHlpAssertMsg2 msg; \
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| 176 | kHlpAssertBreakpoint(); \
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| 177 | stmt; \
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| 178 | return (rcRet); \
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| 179 | } \
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| 180 | } while (0)
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| 181 |
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| [2] | 182 | # define kHlpAssertMsgReturnVoid(expr, msg) \
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| 183 | do { \
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| 184 | if (!(expr)) \
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| 185 | { \
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| [70] | 186 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [2] | 187 | kHlpAssertMsg2 msg; \
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| 188 | kHlpAssertBreakpoint(); \
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| 189 | return; \
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| [18] | 190 | } \
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| [2] | 191 | } while (0)
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| 192 |
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| [39] | 193 | # define kHlpAssertMsgStmtReturnVoid(expr, msg, stmt) \
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| [37] | 194 | do { \
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| 195 | if (!(expr)) \
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| 196 | { \
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| [70] | 197 | kHlpAssertMsg1(#expr, __FILE__, __LINE__, K_FUNCTION); \
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| [37] | 198 | kHlpAssertMsg2 msg; \
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| 199 | kHlpAssertBreakpoint(); \
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| 200 | stmt; \
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| 201 | return; \
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| 202 | } \
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| 203 | } while (0)
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| 204 |
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| [101] | 205 | /* Same as above, only no expression. */
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| 206 |
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| 207 | # define kHlpAssertFailed() \
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| 208 | do { \
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| 209 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 210 | kHlpAssertBreakpoint(); \
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| 211 | } while (0)
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| 212 |
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| 213 | # define kHlpAssertFailedStmt(stmt) \
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| 214 | do { \
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| 215 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 216 | kHlpAssertBreakpoint(); \
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| 217 | stmt; \
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| 218 | } while (0)
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| 219 |
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| 220 | # define kHlpAssertFailedReturn(rcRet) \
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| 221 | do { \
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| 222 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 223 | kHlpAssertBreakpoint(); \
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| 224 | return (rcRet); \
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| 225 | } while (0)
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| 226 |
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| 227 | # define kHlpAssertFailedStmtReturn(stmt, rcRet) \
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| 228 | do { \
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| 229 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 230 | kHlpAssertBreakpoint(); \
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| 231 | stmt; \
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| 232 | return (rcRet); \
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| 233 | } while (0)
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| 234 |
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| 235 | # define kHlpAssertFailedReturnVoid() \
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| 236 | do { \
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| 237 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 238 | kHlpAssertBreakpoint(); \
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| 239 | return; \
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| 240 | } while (0)
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| 241 |
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| 242 | # define kHlpAssertFailedStmtReturnVoid(stmt) \
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| 243 | do { \
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| 244 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 245 | kHlpAssertBreakpoint(); \
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| 246 | stmt; \
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| 247 | return; \
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| 248 | } while (0)
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| 249 |
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| 250 | # define kHlpAssertMsgFailed(msg) \
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| 251 | do { \
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| 252 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 253 | kHlpAssertMsg2 msg; \
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| 254 | kHlpAssertBreakpoint(); \
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| 255 | } while (0)
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| 256 |
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| 257 | # define kHlpAssertMsgFailedStmt(msg, stmt) \
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| 258 | do { \
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| 259 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 260 | kHlpAssertMsg2 msg; \
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| 261 | kHlpAssertBreakpoint(); \
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| 262 | stmt; \
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| 263 | } while (0)
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| 264 |
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| 265 | # define kHlpAssertMsgFailedReturn(msg, rcRet) \
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| 266 | do { \
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| 267 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 268 | kHlpAssertMsg2 msg; \
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| 269 | kHlpAssertBreakpoint(); \
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| 270 | return (rcRet); \
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| 271 | } while (0)
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| 272 |
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| 273 | # define kHlpAssertMsgFailedStmtReturn(msg, stmt, rcRet) \
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| 274 | do { \
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| 275 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 276 | kHlpAssertMsg2 msg; \
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| 277 | kHlpAssertBreakpoint(); \
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| 278 | stmt; \
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| 279 | return (rcRet); \
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| 280 | } while (0)
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| 281 |
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| 282 | # define kHlpAssertMsgFailedReturnVoid(msg) \
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| 283 | do { \
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| 284 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 285 | kHlpAssertMsg2 msg; \
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| 286 | kHlpAssertBreakpoint(); \
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| 287 | return; \
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| 288 | } while (0)
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| 289 |
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| 290 | # define kHlpAssertMsgFailedStmtReturnVoid(msg, stmt) \
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| 291 | do { \
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| 292 | kHlpAssertMsg1("failed", __FILE__, __LINE__, K_FUNCTION); \
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| 293 | kHlpAssertMsg2 msg; \
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| 294 | kHlpAssertBreakpoint(); \
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| 295 | stmt; \
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| 296 | return; \
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| 297 | } while (0)
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| 298 |
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| 299 |
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| [2] | 300 | #else /* !K_STRICT */
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| [101] | 301 |
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| [37] | 302 | # define kHlpAssert(expr) do { } while (0)
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| 303 | # define kHlpAssertStmt(expr, stmt) do { if (!(expr)) { stmt; } } while (0)
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| 304 | # define kHlpAssertReturn(expr, rcRet) do { if (!(expr)) return (rcRet); } while (0)
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| 305 | # define kHlpAssertStmtReturn(expr, stmt, rcRet) do { if (!(expr)) { stmt; return (rcRet); } } while (0)
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| 306 | # define kHlpAssertReturnVoid(expr) do { if (!(expr)) return; } while (0)
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| 307 | # define kHlpAssertStmtReturnVoid(expr, stmt) do { if (!(expr)) { stmt; return; } } while (0)
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| 308 | # define kHlpAssertMsg(expr, msg) do { } while (0)
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| 309 | # define kHlpAssertMsgStmt(expr, msg, stmt) do { if (!(expr)) { stmt; } } while (0)
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| 310 | # define kHlpAssertMsgReturn(expr, msg, rcRet) do { if (!(expr)) return (rcRet); } while (0)
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| 311 | # define kHlpAssertMsgStmtReturn(expr, msg, stmt, rcRet) do { if (!(expr)) { stmt; return (rcRet); } } while (0)
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| 312 | # define kHlpAssertMsgReturnVoid(expr, msg) do { if (!(expr)) return; } while (0)
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| 313 | # define kHlpAssertMsgStmtReturnVoid(expr, msg, stmt) do { if (!(expr)) { stmt; return; } } while (0)
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| [101] | 314 | /* Same as above, only no expression: */
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| 315 | # define kHlpAssertFailed() do { } while (0)
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| 316 | # define kHlpAssertFailedStmt(stmt) do { stmt; } while (0)
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| 317 | # define kHlpAssertFailedReturn(rcRet) do { return (rcRet); } while (0)
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| 318 | # define kHlpAssertFailedStmtReturn(stmt, rcRet) do { stmt; return (rcRet); } while (0)
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| 319 | # define kHlpAssertFailedReturnVoid() do { return; } while (0)
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| 320 | # define kHlpAssertFailedStmtReturnVoid(stmt) do { stmt; return; } while (0)
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| 321 | # define kHlpAssertMsgFailed(msg) do { } while (0)
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| 322 | # define kHlpAssertMsgFailedStmt(msg, stmt) do { stmt; } while (0)
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| 323 | # define kHlpAssertMsgFailedReturn(msg, rcRet) do { return (rcRet); } while (0)
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| 324 | # define kHlpAssertMsgFailedStmtReturn(msg, stmt, rcRet) do { { stmt; return (rcRet); } } while (0)
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| 325 | # define kHlpAssertMsgFailedReturnVoid(msg) do { return; } while (0)
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| 326 | # define kHlpAssertMsgFailedStmtReturnVoid(msg, stmt) do { stmt; return; } while (0)
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| 327 |
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| [2] | 328 | #endif /* !K_STRICT */
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| 329 |
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| 330 | #define kHlpAssertPtr(ptr) kHlpAssertMsg(K_VALID_PTR(ptr), ("%s = %p\n", #ptr, (ptr)))
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| 331 | #define kHlpAssertPtrReturn(ptr, rcRet) kHlpAssertMsgReturn(K_VALID_PTR(ptr), ("%s = %p -> %d\n", #ptr, (ptr), (rcRet)), (rcRet))
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| [37] | 332 | #define kHlpAssertPtrReturn(ptr, rcRet) kHlpAssertMsgReturn(K_VALID_PTR(ptr), ("%s = %p -> %d\n", #ptr, (ptr), (rcRet)), (rcRet))
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| [2] | 333 | #define kHlpAssertPtrReturnVoid(ptr) kHlpAssertMsgReturnVoid(K_VALID_PTR(ptr), ("%s = %p -> %d\n", #ptr, (ptr), (rcRet)))
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| 334 | #define kHlpAssertPtrNull(ptr) kHlpAssertMsg(!(ptr) || K_VALID_PTR(ptr), ("%s = %p\n", #ptr, (ptr)))
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| 335 | #define kHlpAssertPtrNullReturn(ptr, rcRet) kHlpAssertMsgReturn(!(ptr) || K_VALID_PTR(ptr), ("%s = %p -> %d\n", #ptr, (ptr), (rcRet)), (rcRet))
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| 336 | #define kHlpAssertPtrNullReturnVoid(ptr) kHlpAssertMsgReturnVoid(!(ptr) || K_VALID_PTR(ptr), ("%s = %p -> %d\n", #ptr, (ptr), (rcRet)))
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| 337 | #define kHlpAssertRC(rc) kHlpAssertMsg((rc) == 0, ("%s = %d\n", #rc, (rc)))
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| 338 | #define kHlpAssertRCReturn(rc, rcRet) kHlpAssertMsgReturn((rc) == 0, ("%s = %d -> %d\n", #rc, (rc), (rcRet)), (rcRet))
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| 339 | #define kHlpAssertRCReturnVoid(rc) kHlpAssertMsgReturnVoid((rc) == 0, ("%s = %d -> %d\n", #rc, (rc), (rcRet)))
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| 340 |
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| [101] | 341 |
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| [2] | 342 | /**
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| 343 | * Helper function that displays the first part of the assertion message.
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| 344 | *
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| 345 | * @param pszExpr The expression.
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| 346 | * @param pszFile The file name.
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| 347 | * @param iLine The line number is the file.
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| 348 | * @param pszFunction The function name.
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| 349 | * @internal
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| 350 | */
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| 351 | KHLP_DECL(void) kHlpAssertMsg1(const char *pszExpr, const char *pszFile, unsigned iLine, const char *pszFunction);
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| 352 |
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| 353 | /**
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| 354 | * Helper function that displays custom assert message.
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| 355 | *
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| 356 | * @param pszFormat Format string that get passed to vprintf.
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| 357 | * @param ... Format arguments.
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| 358 | * @internal
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| 359 | */
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| 360 | KHLP_DECL(void) kHlpAssertMsg2(const char *pszFormat, ...);
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| 361 |
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| 362 |
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| 363 | /** @} */
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| 364 |
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| 365 | #ifdef __cplusplus
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| 366 | }
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| 367 | #endif
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| 368 |
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| 369 | #endif
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