Zig 0.17.0-dev (Split by item)

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copyRange4

memcpy.copyRange4

inline fn copyRange4(
    comptime copy_len: comptime_int,
    noalias dest: [*]u8,
    noalias src: [*]const u8,
    len: usize,
) void

File

lib/compiler_rt/memcpy.zig:176

Code

inline fn copyRange4(
    comptime copy_len: comptime_int,
    noalias dest: [*]u8,
    noalias src: [*]const u8,
    len: usize,
) void {
    @setRuntimeSafety(false);
    comptime assert(std.math.isPowerOfTwo(copy_len));

    const a = len & (copy_len * 2);
    const b = a / 2;

    const last = len - copy_len;
    const pen = last - b;

    copyFixedLength(dest, src, copy_len);
    copyFixedLength(dest + b, src + b, copy_len);
    copyFixedLength(dest + pen, src + pen, copy_len);
    copyFixedLength(dest + last, src + last, copy_len);
}