method

warn

v1_9_2_180 - Show latest stable - Class: Kernel

warn(p1)

public

Display the given message (followed by a newline) on STDERR unless warnings are disabled (for example with the -W0 flag).

static VALUE
rb_warn_m(VALUE self, VALUE mesg)
{
    if (!NIL_P(ruby_verbose)) {
        rb_io_write(rb_stderr, mesg);
        rb_io_write(rb_stderr, rb_default_rs);
    }
    return Qnil;
}

warn

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