113 lines
3.9 KiB
C
113 lines
3.9 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: assert() support //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#ifndef _KALBASE_ASSERT_H
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#define _KALBASE_ASSERT_H
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//------------------------------------------//
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#ifndef noreturn
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#define noreturn __attribute__((__noreturn__))
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#endif
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#ifndef unlikely
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#define unlikely(x) (__builtin_expect((x), 0))
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#endif
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#ifndef static_assert
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#define static_assert _Static_assert
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#endif
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//------------------------------------------//
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// API compatibility checks //
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//------------------------------------------//
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#define _SA_MSG "Incompatible type sizes"
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static_assert(sizeof(char) == 1, _SA_MSG);
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static_assert(sizeof(short) == 2, _SA_MSG);
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static_assert(sizeof(int) == 4, _SA_MSG);
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static_assert(sizeof(long) == 8, _SA_MSG);
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static_assert(sizeof(void *) == 8, _SA_MSG);
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#undef _SA_MSG
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//------------------------------------------//
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// Assert core //
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//------------------------------------------//
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Failed assert handler
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noreturn void __assert_handler(const char *, const char *, int, const char *);
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#ifdef __cplusplus
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}
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#endif
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// Unconditional assert
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#define KalAlwaysAssert(x) \
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do { \
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if unlikely (!(x)) \
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__assert_handler(#x, __FILE__, __LINE__, __func__); \
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} while (0)
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//------------------------------------------//
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// When debugging //
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//------------------------------------------//
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#if /*!defined(_NO_DEBUG) && !defined(NDEBUG) &&*/ !defined(KalAssert)
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//
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// Check whether (x) holds, if not call __assert_handler
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//
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#define KalAssert KalAlwaysAssert
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//------------------------------------------//
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// When not debugging //
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//------------------------------------------//
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#else
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#ifndef KalAssert
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#define KalAssert(x) ((void)0)
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#endif
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#endif
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//------------------------------------------//
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// Aliases and extensions //
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//------------------------------------------//
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#ifndef assert
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#define assert KalAssert
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#endif
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#define KalAssertEx(x,m) KalAssert(x && m)
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#define KalAlwaysAssertEx(x,m) KalAlwaysAssert(x && m)
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//------------------------------------------//
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#endif
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