Zig 0.17.0-dev (Split by item)

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swab

unistd.swab

fn swab(noalias src_ptr: *const anyopaque, noalias dest_ptr: *anyopaque, n: isize) callconv(.c) void

File

lib/c/unistd.zig:224

Code

fn swab(noalias src_ptr: *const anyopaque, noalias dest_ptr: *anyopaque, n: isize) callconv(.c) void {
    var src: [*]const u8 = @ptrCast(src_ptr);
    var dest: [*]u8 = @ptrCast(dest_ptr);
    var i = n;

    while (i > 1) : (i -= 2) {
        dest[0] = src[1];
        dest[1] = src[0];
        dest += 2;
        src += 2;
    }
}