}
/*
- * Rough approximation to sqrt.
+ * Compute the integer square root floor(sqrt(x)).
*
- * It returns an integer res with res * res <= x. Taken 2007 from the linux
- * source tree.
+ * Taken 2007 from the linux source tree.
*/
__a_const static uint64_t int_sqrt(uint64_t x)
{