Revision 0374152f libavutil/attributes.h

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libavutil/attributes.h
96 96 
#endif
97 97 
#endif
98 98 

  		




  
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/**


  		




  
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 * Mark a variable as used and prevent the compiler from optimizing it


  		




  
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 * away.  This is useful for variables accessed only from inline


  		




  
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 * assembler without the compiler being aware.


  		




  
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 */


  		




  
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#ifndef av_used


  		




  
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#if AV_GCC_VERSION_AT_LEAST(3,1)


  		




  
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#    define av_used __attribute__((used))


  		




  
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#else


  		




  
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#    define av_used


  		




  
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#endif


  		




  
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#endif


  		




  
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#ifndef av_alias


  		




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#if (!defined(__ICC) || __ICC > 1200) && AV_GCC_VERSION_AT_LEAST(3,3)


  		




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#   define av_alias __attribute__((may_alias))


  		












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