2013年3月30日

libc 一些内置函数

摘要： — Built-in Function: int __builtin_ffs (unsigned int x) Returns one plus the index of the least significant 1-bit of x, or if x is zero, returns zero. — Built-in Function: int __builtin_clz (unsigned int x) Returns the number of leading 0-bits in x, starting at the most significant bit positio... 阅读全文

posted @ 2013-03-30 13:59 馒头山小八路 阅读(457) 评论(0) 推荐(0)

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