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Brian Harris
138
neo/idlib/sys/sys_assert.h
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138
neo/idlib/sys/sys_assert.h
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/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code 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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(at your option) any later version.
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Doom 3 BFG Edition Source Code 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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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#ifndef __SYS_ASSERT_H__
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#define __SYS_ASSERT_H__
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/*
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================================================================================================
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Getting assert() to work as we want on all platforms and code analysis tools can be tricky.
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================================================================================================
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*/
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bool AssertFailed( const char *file, int line, const char *expression );
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// tell PC-Lint that assert failed won't return, which means it can assume the conditions
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// are true for subsequent analysis.
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//lint -function( exit, AssertFailed )
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//====================== assert in debug mode =======================
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#if defined( _DEBUG ) || defined( _lint )
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#undef assert
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// idassert is useful for cases where some external library (think MFC, etc.)
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// decides it's a good idea to redefine assert on us
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#define idassert( x ) (void)( ( !!( x ) ) || ( AssertFailed( __FILE__, __LINE__, #x ) ) )
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// We have the code analysis tools on the 360 compiler,
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// so let it know what our asserts are.
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// The VS ultimate editions also get it on win32, but not x86
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#define assert( x ) __analysis_assume( x ) ; idassert( x )
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#define verify( x ) ( ( x ) ? true : ( AssertFailed( __FILE__, __LINE__, #x ), false ) )
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#else // _DEBUG
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//====================== assert in release mode =======================
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#define idassert( x ) { (( void )0); }
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#undef assert
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#define assert( x ) idassert( x )
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#define verify( x ) ( ( x ) ? true : false )
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#endif // _DEBUG
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//=====================================================================
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#define idreleaseassert( x ) (void)( ( !!( x ) ) || ( AssertFailed( __FILE__, __LINE__, #x ) ) );
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#define release_assert( x ) idreleaseassert( x )
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#define assert_2_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 1 ) == 0 )
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#define assert_4_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 3 ) == 0 )
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#define assert_8_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 7 ) == 0 )
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#define assert_16_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 15 ) == 0 )
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#define assert_32_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 31 ) == 0 )
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#define assert_64_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 63 ) == 0 )
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#define assert_128_byte_aligned( ptr ) assert( ( ((UINT_PTR)(ptr)) & 127 ) == 0 )
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#define assert_aligned_to_type_size( ptr ) assert( ( ((UINT_PTR)(ptr)) & ( sizeof( (ptr)[0] ) - 1 ) ) == 0 )
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#if !defined( __TYPEINFOGEN__ ) && !defined( _lint ) // pcLint has problems with assert_offsetof()
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template<bool> struct compile_time_assert_failed;
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template<> struct compile_time_assert_failed<true> {};
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template<int x> struct compile_time_assert_test {};
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#define compile_time_assert_join2( a, b ) a##b
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#define compile_time_assert_join( a, b ) compile_time_assert_join2(a,b)
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#define compile_time_assert( x ) typedef compile_time_assert_test<sizeof(compile_time_assert_failed<(bool)(x)>)> compile_time_assert_join(compile_time_assert_typedef_, __LINE__)
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#define assert_sizeof( type, size ) compile_time_assert( sizeof( type ) == size )
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#define assert_sizeof_8_byte_multiple( type ) compile_time_assert( ( sizeof( type ) & 7 ) == 0 )
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#define assert_sizeof_16_byte_multiple( type ) compile_time_assert( ( sizeof( type ) & 15 ) == 0 )
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#define assert_offsetof( type, field, offset ) compile_time_assert( offsetof( type, field ) == offset )
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#define assert_offsetof_8_byte_multiple( type, field ) compile_time_assert( ( offsetof( type, field ) & 7 ) == 0 )
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#define assert_offsetof_16_byte_multiple( type, field ) compile_time_assert( ( offsetof( type, field ) & 15 ) == 0 )
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#else
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#define compile_time_assert( x )
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#define assert_sizeof( type, size )
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#define assert_sizeof_8_byte_multiple( type )
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#define assert_sizeof_16_byte_multiple( type )
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#define assert_offsetof( type, field, offset )
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#define assert_offsetof_8_byte_multiple( type, field )
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#define assert_offsetof_16_byte_multiple( type, field )
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#endif
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// useful for verifying that an array of items has the same number of elements in it as an enum type
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#define verify_array_size( _array_name_, _max_enum_ ) \
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compile_time_assert( sizeof( _array_name_ ) == ( _max_enum_ ) * sizeof( _array_name_[ 0 ] ) )
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// ai debugging macros (designed to limit ai interruptions to non-ai programmers)
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#ifdef _DEBUG
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//#define DEBUGAI // NOTE: uncomment for full ai debugging
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#endif
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#ifdef DEBUGAI
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#define ASSERTAI( x ) assert( x )
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#define VERIFYAI( x ) verify( x )
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#else // DEBUGAI
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#define ASSERTAI( x )
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#define VERIFYAI( x ) ( ( x ) ? true : false )
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#endif // DEBUGAI
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#endif // !__SYS_ASSERT_H__
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