Zig 0.17.0-dev (Split by item)

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hypotFused

hypot.hypotFused

inline fn hypotFused(comptime F: type, x: F, y: F) F

File

lib/std/math/hypot.zig:64

Code

inline fn hypotFused(comptime F: type, x: F, y: F) F {
    const r = @sqrt(@mulAdd(F, x, x, y * y));
    const rr = r * r;
    const xx = x * x;
    const z = @mulAdd(F, -y, y, rr - xx) + @mulAdd(F, r, r, -rr) - @mulAdd(F, x, x, -xx);
    return r - z / (2 * r);
}