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Pavel Kirienko
83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
/*
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* Copyright (C) 2014 Pavel Kirienko <pavel.kirienko@gmail.com>
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*/
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#pragma once
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#include <uavcan/util/compile_time.hpp>
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/**
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* UAVCAN version definition
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* // TODO: Use git short hash as build id
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*/
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#define UAVCAN_VERSION_MAJOR 0
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#define UAVCAN_VERSION_MINOR 1
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#define UAVCAN_VERSION_BUILD 0
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/**
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* UAVCAN can be compiled in C++11 mode.
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* This macro allows to detect which version of the C++ standard is being used.
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*/
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#define UAVCAN_CPP11 2011
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#define UAVCAN_CPP03 2003
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#if __cplusplus > 201200
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# error Unsupported C++ standard
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#elif (__cplusplus > 201100) || defined(__GXX_EXPERIMENTAL_CXX0X__)
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# define UAVCAN_CPP_VERSION UAVCAN_CPP11
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#else
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# define UAVCAN_CPP_VERSION UAVCAN_CPP03
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#endif
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/**
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* UAVCAN can be explicitly told to ignore exceptions, or it can be detected automatically.
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*/
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#ifndef UAVCAN_EXCEPTIONS
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# if __EXCEPTIONS || _HAS_EXCEPTIONS
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# define UAVCAN_EXCEPTIONS 1
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# else
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# define UAVCAN_EXCEPTIONS 0
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# endif
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#endif
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/**
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* Struct layout control.
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* Define UAVCAN_PACK_STRUCTS = 1 to reduce memory usage.
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*/
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#ifndef UAVCAN_PACK_STRUCTS
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# define UAVCAN_PACK_STRUCTS 0
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#endif
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#ifndef UAVCAN_PACKED_BEGIN
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# define UAVCAN_PACKED_BEGIN _Pragma("pack(push, 1)")
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#endif
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#ifndef UAVCAN_PACKED_END
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# define UAVCAN_PACKED_END _Pragma("pack(pop)")
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#endif
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namespace uavcan
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{
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/**
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* Should be OK for any target arch up to AMD64 and any compiler.
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* The library leverages compile-time checks to ensure that all types that are subject to dynamic allocation
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* fit this size; otherwise compilation fails.
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*/
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#if UAVCAN_MEM_POOL_BLOCK_SIZE
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enum { MemPoolBlockSize = UAVCAN_MEM_POOL_BLOCK_SIZE };
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#else
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enum { MemPoolBlockSize = 48 };
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#endif
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enum { MemPoolAlignment = 8 };
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typedef char _alignment_check_for_MEM_POOL_BLOCK_SIZE[((MemPoolBlockSize & (MemPoolAlignment - 1)) == 0) ? 1 : -1];
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template <typename T>
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struct IsDynamicallyAllocatable
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{
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static void check() { StaticAssert<sizeof(T) <= MemPoolBlockSize>::check(); }
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};
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}
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