驗證網址graphics.stanford.edu安全性

Bit Twiddling Hacks - Computer Graphics at Stanford University

Compute the integer absolute value (abs) without branching int v; // we want to find the absolute value of v unsigned int r; // the result goes here int const mask = v >> sizeof(int) * CHAR_BIT - 1; r = (v + mask) ^ mask; Patented variation: r = (v ^ mask...

網址安全性掃描由 google 提供