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https://github.com/ETLCPP/etl.git
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8dbd6904b7
Added a ETL_DEBUG macro to platform.h to simplify selecting condition code for debugging.
138 lines
3.0 KiB
C++
138 lines
3.0 KiB
C++
///\file
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/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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https://github.com/ETLCPP/etl
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http://www.etlcpp.com
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Copyright(c) 2017 jwellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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#ifndef __ETL_DEBUG_COUNT__
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#define __ETL_DEBUG_COUNT__
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#include <stdint.h>
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#include <assert.h>
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#include "platform.h"
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///\defgroup debug_count debug count
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///\ingroup utilities
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namespace etl
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{
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//***************************************************************************
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/// Used to count instances.
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/// Asserts if the count is decremented below zero.
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/// Asserts if the count is not zero when destructed.
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/// Does nothing in a non-debug build.
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///\ingroup reference
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//***************************************************************************
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class debug_count
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{
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public:
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#if defined(ETL_DEBUG)
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inline debug_count()
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: count(0)
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{
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}
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inline ~debug_count()
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{
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assert(count == 0);
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}
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inline debug_count& operator ++()
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{
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++count;
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return *this;
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}
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inline debug_count& operator --()
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{
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--count;
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assert(count >= 0);
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return *this;
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}
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inline debug_count& operator +=(int32_t n)
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{
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count += n;
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return *this;
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}
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inline debug_count& operator -=(int32_t n)
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{
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count -= n;
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return *this;
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}
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inline operator int32_t()
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{
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return count;
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}
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private:
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int32_t count;
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#else
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inline debug_count()
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{
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}
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inline ~debug_count()
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{
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}
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inline debug_count& operator ++()
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{
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return *this;
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}
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inline debug_count& operator --()
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{
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return *this;
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}
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inline debug_count& operator +=(int32_t /*n*/)
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{
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return *this;
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}
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inline debug_count& operator -=(int32_t /*n*/)
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{
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return *this;
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}
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inline operator int32_t()
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{
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return 0;
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}
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#endif
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};
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}
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#endif
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