__builtin_expect详解[转]
摘要:        
转自:http://babybandf.blog.163.com/blog/static/619935320105942336930/在GTK+2.0源码中有很多这样的宏:G_LIKELY和G_UNLIKELY。比如下面这段代码:if (G_LIKELY (acat == 1)) /* allocate through magazine layer */ { ThreadMemory *tmem = thread_memory_from_self(); guint ix = SLAB_INDEX (allocator, chunk_size);...    阅读全文
        posted @ 2012-11-08 14:22 Lo0ong 阅读(715) 评论(0) 推荐(0)
 
                     
                    
                 
                    
                 
 
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浙公网安备 33010602011771号