libuavcan/libuavcan/include/uavcan/build_config.hpp

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/*
 * Copyright (C) 2014 Pavel Kirienko <pavel.kirienko@gmail.com>
 */
 
#ifndef UAVCAN_BUILD_CONFIG_HPP_INCLUDED
#define UAVCAN_BUILD_CONFIG_HPP_INCLUDED
 
#define UAVCAN_VERSION_MAJOR    1
#define UAVCAN_VERSION_MINOR    0
 
#define UAVCAN_CPP17    2017
#define UAVCAN_CPP14    2014
#define UAVCAN_CPP11    2011
#define UAVCAN_CPP03    2003
 
#ifndef UAVCAN_CPP_VERSION
# if __cplusplus > 201200
#  error Unsupported C++ standard. You can explicitly set UAVCAN_CPP_VERSION=UAVCAN_CPP11 to silence this error.
# elif (__cplusplus > 201100) || defined(__GXX_EXPERIMENTAL_CXX0X__)
#  define UAVCAN_CPP_VERSION    UAVCAN_CPP11
# else
#  define UAVCAN_CPP_VERSION    UAVCAN_CPP03
# endif
#endif
 
#ifndef UAVCAN_NULLPTR
# if UAVCAN_CPP_VERSION >= UAVCAN_CPP11
#  define UAVCAN_NULLPTR nullptr
# else
#  define UAVCAN_NULLPTR NULL
# endif
#endif
 
#ifndef UAVCAN_GENERAL_PURPOSE_PLATFORM
# if (defined(__linux__)    || defined(__linux)     || defined(__APPLE__)   ||\
      defined(_WIN64)       || defined(_WIN32)      || defined(__ANDROID__) ||\
      defined(_SYSTYPE_BSD) || defined(__FreeBSD__))
#  define UAVCAN_GENERAL_PURPOSE_PLATFORM 1
# else
#  define UAVCAN_GENERAL_PURPOSE_PLATFORM 0
# endif
#endif
 
#ifndef UAVCAN_DEBUG
# define UAVCAN_DEBUG 0
#endif
 
#ifndef UAVCAN_EXCEPTIONS
# define UAVCAN_EXCEPTIONS UAVCAN_GENERAL_PURPOSE_PLATFORM
#endif
 
#ifndef UAVCAN_NOEXCEPT
# if UAVCAN_EXCEPTIONS
#  if UAVCAN_CPP_VERSION >= UAVCAN_CPP11
#   define UAVCAN_NOEXCEPT noexcept
#  else
#   define UAVCAN_NOEXCEPT throw()
#  endif
# else
#  define UAVCAN_NOEXCEPT
# endif
#endif
 
#ifndef UAVCAN_EXPORT
# define UAVCAN_EXPORT
#endif
 
#ifndef UAVCAN_TINY
# define UAVCAN_TINY 0
#endif
 
#ifndef UAVCAN_NO_GLOBAL_DATA_TYPE_REGISTRY
# define UAVCAN_NO_GLOBAL_DATA_TYPE_REGISTRY 0
#endif
 
#ifndef UAVCAN_TOSTRING
# if UAVCAN_EXCEPTIONS
#  define UAVCAN_TOSTRING UAVCAN_GENERAL_PURPOSE_PLATFORM
# else
#  define UAVCAN_TOSTRING 0
# endif
#endif
 
#if UAVCAN_TOSTRING
# if !UAVCAN_EXCEPTIONS
#  error UAVCAN_TOSTRING requires UAVCAN_EXCEPTIONS
# endif
# include <string>
#endif
 
#ifndef UAVCAN_IMPLEMENT_PLACEMENT_NEW
# define UAVCAN_IMPLEMENT_PLACEMENT_NEW 0
#endif
 
#ifndef UAVCAN_USE_EXTERNAL_SNPRINTF
# define UAVCAN_USE_EXTERNAL_SNPRINTF   0
#endif
 
#ifndef UAVCAN_USE_EXTERNAL_FLOAT16_CONVERSION
# define UAVCAN_USE_EXTERNAL_FLOAT16_CONVERSION 0
#endif
 
#ifndef UAVCAN_ASSERT
# ifndef UAVCAN_NO_ASSERTIONS
#  define UAVCAN_NO_ASSERTIONS 0
# endif
# if UAVCAN_NO_ASSERTIONS
#  define UAVCAN_ASSERT(x)
# else
#  define UAVCAN_ASSERT(x) assert(x)
# endif
#endif
 
#ifndef UAVCAN_LIKELY
# if __GNUC__
#  define UAVCAN_LIKELY(x) __builtin_expect(!!(x), true)
# else
#  define UAVCAN_LIKELY(x) (x)
# endif
#endif
 
#ifndef UAVCAN_UNLIKELY
# if __GNUC__
#  define UAVCAN_UNLIKELY(x) __builtin_expect(!!(x), false)
# else
#  define UAVCAN_UNLIKELY(x) (x)
# endif
#endif
 
namespace uavcan
{
#ifdef UAVCAN_MEM_POOL_BLOCK_SIZE
static const unsigned MemPoolBlockSize = UAVCAN_MEM_POOL_BLOCK_SIZE;
#elif defined(__BIGGEST_ALIGNMENT__) && (__BIGGEST_ALIGNMENT__ <= 8)
static const unsigned MemPoolBlockSize = 56;
#else
static const unsigned MemPoolBlockSize = 64;
#endif
 
#ifdef __BIGGEST_ALIGNMENT__
static const unsigned MemPoolAlignment = __BIGGEST_ALIGNMENT__;
#else
static const unsigned MemPoolAlignment = 16;
#endif
 
typedef char _alignment_check_for_MEM_POOL_BLOCK_SIZE[((MemPoolBlockSize & (MemPoolAlignment - 1)) == 0) ? 1 : -1];
 
template <typename T>
struct UAVCAN_EXPORT IsDynamicallyAllocatable
{
    static void check()
    {
        char dummy[(sizeof(T) <= MemPoolBlockSize) ? 1 : -1] = { '0' };
        (void)dummy;
    }
};
 
#ifdef UAVCAN_FLOAT_COMPARISON_EPSILON_MULT
static const unsigned FloatComparisonEpsilonMult = UAVCAN_FLOAT_COMPARISON_EPSILON_MULT;
#else
static const unsigned FloatComparisonEpsilonMult = 10;
#endif
 
#ifdef UAVCAN_MAX_CAN_ACCEPTANCE_FILTERS
static const unsigned MaxCanAcceptanceFilters = UAVCAN_MAX_CAN_ACCEPTANCE_FILTERS;
#else
static const unsigned MaxCanAcceptanceFilters = 32;
#endif
 
}
 
#endif // UAVCAN_BUILD_CONFIG_HPP_INCLUDED