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processNLeaves

kangarootwelve.processNLeaves

inline fn processNLeaves(
    comptime Variant: type,
    comptime N: usize,
    view: *const MultiSliceView,
    j: usize,
    leaf_buffer: []u8,
    output: []align(@alignOf(u64)) u8,
) void

File

lib/std/crypto/kangarootwelve.zig:593

Code

inline fn processNLeaves(
    comptime Variant: type,
    comptime N: usize,
    view: *const MultiSliceView,
    j: usize,
    leaf_buffer: []u8,
    output: []align(@alignOf(u64)) u8,
) void {
    const cv_size = Variant.cv_size;
    comptime assert(cv_size % @sizeOf(u64) == 0);

    if (view.tryGetSlice(j, j + N * chunk_size)) |leaf_data| {
        var leaf_cvs: [N * cv_size]u8 = undefined;
        processLeaves(Variant, N, leaf_data, &leaf_cvs);
        @memcpy(output[0..leaf_cvs.len], &leaf_cvs);
    } else {
        view.copyRange(j, j + N * chunk_size, leaf_buffer[0 .. N * chunk_size]);
        var leaf_cvs: [N * cv_size]u8 = undefined;
        processLeaves(Variant, N, leaf_buffer[0 .. N * chunk_size], &leaf_cvs);
        @memcpy(output[0..leaf_cvs.len], &leaf_cvs);
    }
}