Zig 0.17.0-dev (Split by item)

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memmoveSmall

memmove.memmoveSmall

fn memmoveSmall(opt_dest: ?[*]u8, opt_src: ?[*]const u8, len: usize) callconv(.c) ?[*]u8

File

lib/compiler_rt/memmove.zig:24

Code

fn memmoveSmall(opt_dest: ?[*]u8, opt_src: ?[*]const u8, len: usize) callconv(.c) ?[*]u8 {
    const dest = opt_dest.?;
    const src = opt_src.?;

    if (@intFromPtr(dest) < @intFromPtr(src)) {
        for (0..len) |i| {
            dest[i] = src[i];
        }
    } else {
        for (0..len) |i| {
            dest[len - 1 - i] = src[len - 1 - i];
        }
    }

    return dest;
}