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/* $Id: tstRTAssertCompile.cpp $ */
/** @file
* IPRT Testcase - AssertCompile* - A Compile Time Testcase.
*/
/*
* Copyright (C) 2010-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/assert.h>
int main(int argc, char **argv)
{
/* Only positive tests here. */
NOREF(argc); NOREF(argv);
AssertCompile(true);
AssertCompile(1);
AssertCompile(2);
AssertCompile(99);
uint8_t u8; NOREF( u8);
uint16_t u16; NOREF(u16);
uint32_t u32; NOREF(u32);
uint64_t u64; NOREF(u64);
AssertCompileSize( u8, 1);
AssertCompileSize(u16, 2);
AssertCompileSize(u32, 4);
AssertCompileSize(u64, 8);
AssertCompileSizeAlignment( u8, 1);
AssertCompileSizeAlignment(u16, 1);
AssertCompileSizeAlignment(u16, 2);
AssertCompileSizeAlignment(u32, 1);
AssertCompileSizeAlignment(u32, 2);
AssertCompileSizeAlignment(u32, 4);
AssertCompileSizeAlignment(u64, 1);
AssertCompileSizeAlignment(u64, 2);
AssertCompileSizeAlignment(u64, 4);
AssertCompileSizeAlignment(u64, 8);
typedef struct STRUCT12S
{
uint8_t u8;
uint8_t au8[8];
uint64_t u64;
uint8_t u8UnalignmentFiller1;
uint32_t u32;
uint8_t u8UnalignmentFiller2;
uint16_t u16;
const char *psz;
uint32_t u32A;
uint32_t u32B;
} STRUCT1, STRUCT2;
AssertCompileMemberSize(STRUCT1, u8, 1);
AssertCompileMemberSize(STRUCT1, u16, 2);
AssertCompileMemberSize(STRUCT1, u32, 4);
AssertCompileMemberSize(STRUCT1, u64, 8);
AssertCompileMemberSizeAlignment(STRUCT1, u8, 1);
AssertCompileMemberSizeAlignment(STRUCT1, u16, 1);
AssertCompileMemberSizeAlignment(STRUCT1, u16, 2);
AssertCompileMemberSizeAlignment(STRUCT1, u32, 1);
AssertCompileMemberSizeAlignment(STRUCT1, u32, 2);
AssertCompileMemberSizeAlignment(STRUCT1, u32, 4);
AssertCompileMemberSizeAlignment(STRUCT1, u64, 1);
AssertCompileMemberSizeAlignment(STRUCT1, u64, 2);
AssertCompileMemberSizeAlignment(STRUCT1, u64, 4);
AssertCompileMemberSizeAlignment(STRUCT1, u64, 8);
AssertCompileMemberSizeAlignment(STRUCT1, psz, sizeof(void *));
AssertCompileMemberAlignment(STRUCT1, u8, 1);
AssertCompileMemberAlignment(STRUCT1, u16, 1);
AssertCompileMemberAlignment(STRUCT1, u16, 2);
AssertCompileMemberAlignment(STRUCT1, u32, 1);
AssertCompileMemberAlignment(STRUCT1, u32, 2);
AssertCompileMemberAlignment(STRUCT1, u32, 4);
AssertCompileMemberAlignment(STRUCT1, u64, 1);
AssertCompileMemberAlignment(STRUCT1, u64, 2);
AssertCompileMemberAlignment(STRUCT1, u64, 4);
#if defined(__GNUC__) && ARCH_BITS >= 64
AssertCompileMemberAlignment(STRUCT1, u64, 8);
#endif
AssertCompileMemberAlignment(STRUCT1, psz, sizeof(void *));
AssertCompileMemberOffset(STRUCT1, u8, 0);
AssertCompileMemberOffset(STRUCT1, au8, 1);
#ifndef _MSC_VER /** @todo figure out why MSC has trouble with these expressions */
AssertCompileMemberOffset(STRUCT1, au8[0], 1);
AssertCompileMemberOffset(STRUCT1, au8[8], 9);
#endif
typedef union UNION1U
{
STRUCT1 s1;
STRUCT2 s2;
} UNION1;
AssertCompile2MemberOffsets(UNION1, s1.u8, s2.u8);
AssertCompile2MemberOffsets(UNION1, s1.u16, s2.u16);
AssertCompile2MemberOffsets(UNION1, s1.u32, s2.u32);
AssertCompile2MemberOffsets(UNION1, s1.u64, s2.u64);
AssertCompile2MemberOffsets(UNION1, s1.psz, s2.psz);
AssertCompileAdjacentMembers(STRUCT1, u32A, u32B);
AssertCompileAdjacentMembers(STRUCT1, u8, au8);
#ifndef _MSC_VER /** @todo figure out why MSC has trouble with these expressions */
AssertCompileAdjacentMembers(STRUCT1, u8, au8[0]);
AssertCompileAdjacentMembers(STRUCT1, au8[0], au8[1]);
#endif
AssertCompileMembersAtSameOffset(STRUCT1, u8, STRUCT2, u8);
AssertCompileMembersAtSameOffset(STRUCT1, au8, STRUCT2, au8);
AssertCompileMembersAtSameOffset(STRUCT1, u16, STRUCT2, u16);
AssertCompileMembersAtSameOffset(STRUCT1, u32, STRUCT2, u32);
AssertCompileMembersAtSameOffset(STRUCT1, u64, STRUCT2, u64);
AssertCompileMembersSameSize(STRUCT1, u8, STRUCT2, u8);
AssertCompileMembersSameSize(STRUCT1, au8, STRUCT2, au8);
AssertCompileMembersSameSize(STRUCT1, u16, STRUCT2, u16);
AssertCompileMembersSameSize(STRUCT1, u32, STRUCT2, u32);
AssertCompileMembersSameSize(STRUCT1, u64, STRUCT2, u64);
AssertCompileMembersSameSizeAndOffset(STRUCT1, u8, STRUCT2, u8);
AssertCompileMembersSameSizeAndOffset(STRUCT1, au8, STRUCT2, au8);
AssertCompileMembersSameSizeAndOffset(STRUCT1, u16, STRUCT2, u16);
AssertCompileMembersSameSizeAndOffset(STRUCT1, u32, STRUCT2, u32);
AssertCompileMembersSameSizeAndOffset(STRUCT1, u64, STRUCT2, u64);
/*
* Check some cdefs.h macros while where here, we'll be using
* AssertCompile so it's kind of related.
*/
#ifdef RT_COMPILER_SUPPORTS_VA_ARGS
# if 0
AssertCompile(RT_COUNT_VA_ARGS() == 0);
AssertCompile(RT_COUNT_VA_ARGS(RT_NOTHING) == 1);
# endif
AssertCompile(RT_COUNT_VA_ARGS(asdf) == 1);
AssertCompile(RT_COUNT_VA_ARGS(yyyy) == 1);
AssertCompile(RT_COUNT_VA_ARGS(_) == 1);
AssertCompile(RT_COUNT_VA_ARGS(1, 2, 3, 4, 5, 6, 7, 8, 9, 0) == 10);
#endif
return 0;
}
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