mirror of
https://github.com/ArduPilot/ardupilot
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2ce18f588b
this adds a define for constexpr, allowing code to build either with or without -std=gnu++0x
21 lines
464 B
C++
21 lines
464 B
C++
#ifndef __AP_HAL_MACROS_H__
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#define __AP_HAL_MACROS_H__
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/*
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macros to allow code to build on multiple platforms more easily
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*/
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#ifdef __GNUC__
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#define WARN_IF_UNUSED __attribute__ ((warn_unused_result))
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#else
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#define WARN_IF_UNUSED
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#endif
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// use this to avoid issues between C++11 with NuttX and C++10 on
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// other platforms.
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#if !(defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
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# define constexpr const
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#endif
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#endif // __AP_HAL_MACROS_H__
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