Zig 0.17.0-dev (Split by item)

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mulShift128

float.mulShift128

fn mulShift128(m: u128, mul: *const [4]u64, j: u32) u128

File

lib/std/fmt/float.zig:576

Code

fn mulShift128(m: u128, mul: *const [4]u64, j: u32) u128 {
    std.debug.assert(j > 128);
    const a: [2]u64 = .{ @truncate(m), @truncate(m >> 64) };
    const r = mul_128_256_shift(&a, mul, j, 0);
    return (@as(u128, r[1]) << 64) | r[0];
}