method

warn

v2_4_6 - Show latest stable - Class: Kernel

warn(*args)

public

Displays each of the given messages followed by a record separator on STDERR unless warnings have been disabled (for example with the -W0 flag).

  warn("warning 1", "warning 2")

<em>produces:</em>

  warning 1
  warning 2

static VALUE
rb_warn_m(int argc, VALUE *argv, VALUE exc)
{
    if (!NIL_P(ruby_verbose) && argc > 0) {
        rb_io_puts(argc, argv, rb_stderr);
    }
    return Qnil;
}

warn

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