| 1 | // |
|---|
| 2 | // Lol Engine |
|---|
| 3 | // |
|---|
| 4 | // Copyright: (c) 2010-2013 Sam Hocevar <sam@hocevar.net> |
|---|
| 5 | // This program is free software; you can redistribute it and/or |
|---|
| 6 | // modify it under the terms of the Do What The Fuck You Want To |
|---|
| 7 | // Public License, Version 2, as published by Sam Hocevar. See |
|---|
| 8 | // http://www.wtfpl.net/ for more details. |
|---|
| 9 | // |
|---|
| 10 | |
|---|
| 11 | #if !defined __LOL_BASE_ASSERT_H__ |
|---|
| 12 | #define __LOL_BASE_ASSERT_H__ |
|---|
| 13 | |
|---|
| 14 | #include <cstdlib> |
|---|
| 15 | |
|---|
| 16 | namespace lol |
|---|
| 17 | { |
|---|
| 18 | |
|---|
| 19 | static inline void Abort() |
|---|
| 20 | { |
|---|
| 21 | #if defined __CELLOS_LV2__ |
|---|
| 22 | *(uint32_t *)NULL = 0xdead; |
|---|
| 23 | #else |
|---|
| 24 | std::abort(); |
|---|
| 25 | #endif |
|---|
| 26 | } |
|---|
| 27 | |
|---|
| 28 | /* FIXME: see http://stackoverflow.com/q/3596781/111461 for discussions |
|---|
| 29 | * on implementing __debugbreak() on POSIX systems. */ |
|---|
| 30 | static inline void DebugBreak() |
|---|
| 31 | { |
|---|
| 32 | #if defined _WIN32 |
|---|
| 33 | __debugbreak(); |
|---|
| 34 | #endif |
|---|
| 35 | } |
|---|
| 36 | |
|---|
| 37 | extern void DumpStack(); |
|---|
| 38 | |
|---|
| 39 | #define LOL_CALL(macro, args) macro args |
|---|
| 40 | #define LOL_EVAL(a) a |
|---|
| 41 | #define LOL_1ST(a, ...) a |
|---|
| 42 | |
|---|
| 43 | #define LOL_GET_63RD(a01, a02, a03, a04, a05, a06, a07, a08, a09, a10, \ |
|---|
| 44 | a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, \ |
|---|
| 45 | a21, a22, a23, a24, a25, a26, a27, a28, a29, a30, \ |
|---|
| 46 | a31, a32, a33, a34, a35, a36, a37, a38, a39, a40, \ |
|---|
| 47 | a41, a42, a43, a44, a45, a46, a47, a48, a49, a50, \ |
|---|
| 48 | a51, a52, a53, a54, a55, a56, a57, a58, a59, a60, \ |
|---|
| 49 | a61, a62, a63, ...) a63 |
|---|
| 50 | #define LOL_COUNT_TO_3(...) \ |
|---|
| 51 | LOL_EVAL(LOL_GET_63RD(__VA_ARGS__, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 52 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 53 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 54 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 55 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 56 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, \ |
|---|
| 57 | 2, 1, TOO_FEW_ARGUMENTS)) |
|---|
| 58 | #define LOL_COUNT_TO_8(...) \ |
|---|
| 59 | LOL_EVAL(LOL_GET_63RD(__VA_ARGS__, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, \ |
|---|
| 60 | 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, \ |
|---|
| 61 | 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, \ |
|---|
| 62 | 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, \ |
|---|
| 63 | 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, \ |
|---|
| 64 | 8, 8, 8, 8, 8, 7, 6, 5, 4, 3, \ |
|---|
| 65 | 2, 1, TOO_FEW_ARGUMENTS)) |
|---|
| 66 | |
|---|
| 67 | /* Three levels of dispatch are needed because of Visual Studio's bizarre |
|---|
| 68 | * handling of __VA_ARGS__ inside macro calls */ |
|---|
| 69 | #define LOL_CAT3(a, b) a##b |
|---|
| 70 | #define LOL_CAT2(a, b) LOL_CAT3(a,b) |
|---|
| 71 | #define LOL_CAT(a, b) LOL_CAT2(a,b) |
|---|
| 72 | |
|---|
| 73 | /* |
|---|
| 74 | * UNUSED(): declare one or several variables as unused |
|---|
| 75 | */ |
|---|
| 76 | |
|---|
| 77 | #define LOL_UNUSED_1(a01) \ |
|---|
| 78 | sizeof(a01) |
|---|
| 79 | #define LOL_UNUSED_2(a01, a02) \ |
|---|
| 80 | sizeof(a01) + LOL_UNUSED_1(a02) |
|---|
| 81 | #define LOL_UNUSED_3(a01, a02, a03) \ |
|---|
| 82 | sizeof(a01) + LOL_UNUSED_2(a02, a03) |
|---|
| 83 | #define LOL_UNUSED_4(a01, a02, a03, a04) \ |
|---|
| 84 | sizeof(a01) + LOL_UNUSED_3(a02, a03, a04) |
|---|
| 85 | #define LOL_UNUSED_5(a01, a02, a03, a04, a05) \ |
|---|
| 86 | sizeof(a01) + LOL_UNUSED_4(a02, a03, a04, a05) |
|---|
| 87 | #define LOL_UNUSED_6(a01, a02, a03, a04, a05, a06) \ |
|---|
| 88 | sizeof(a01) + LOL_UNUSED_5(a02, a03, a04, a05, a06) |
|---|
| 89 | #define LOL_UNUSED_7(a01, a02, a03, a04, a05, a06, a07) \ |
|---|
| 90 | sizeof(a01) + LOL_UNUSED_6(a02, a03, a04, a05, a06, a07) |
|---|
| 91 | #define LOL_UNUSED_8(a01, a02, a03, a04, a05, a06, a07, a08) \ |
|---|
| 92 | sizeof(a01) + LOL_UNUSED_7(a02, a03, a04, a05, a06, a07, a08) |
|---|
| 93 | |
|---|
| 94 | #define UNUSED(...) (void)sizeof((void)( \ |
|---|
| 95 | LOL_CALL(LOL_CAT(LOL_UNUSED_, LOL_CALL(LOL_COUNT_TO_8, (__VA_ARGS__))), \ |
|---|
| 96 | (__VA_ARGS__))), 0) \ |
|---|
| 97 | |
|---|
| 98 | /* |
|---|
| 99 | * ASSERT(): test and enforce conditions at runtime |
|---|
| 100 | */ |
|---|
| 101 | |
|---|
| 102 | #define LOL_ERROR_1(t) \ |
|---|
| 103 | Log::Error("assertion failure: " #t "\n") |
|---|
| 104 | |
|---|
| 105 | #define LOL_ERROR_2(t, s) \ |
|---|
| 106 | Log::Error("assertion failure: %s\n", s) |
|---|
| 107 | |
|---|
| 108 | #define LOL_ERROR_3(t, s, ...) \ |
|---|
| 109 | Log::Error("assertion failure: " s "\n", __VA_ARGS__) |
|---|
| 110 | |
|---|
| 111 | #if FINAL_RELEASE |
|---|
| 112 | # define ASSERT(...) UNUSED(LOL_CALL(LOL_1ST, (__VA_ARGS__))) |
|---|
| 113 | #else |
|---|
| 114 | # define ASSERT(...) \ |
|---|
| 115 | if (!(LOL_CALL(LOL_1ST, (__VA_ARGS__)))) \ |
|---|
| 116 | { \ |
|---|
| 117 | LOL_CALL(LOL_CAT(LOL_ERROR_, LOL_CALL(LOL_COUNT_TO_3, \ |
|---|
| 118 | (__VA_ARGS__))), \ |
|---|
| 119 | (__VA_ARGS__)); \ |
|---|
| 120 | DumpStack(); \ |
|---|
| 121 | DebugBreak(); \ |
|---|
| 122 | Abort(); \ |
|---|
| 123 | } |
|---|
| 124 | #endif |
|---|
| 125 | |
|---|
| 126 | } /* namespace lol */ |
|---|
| 127 | |
|---|
| 128 | #endif // __LOL_BASE_ASSERT_H__ |
|---|
| 129 | |
|---|
