range.h

#ifndef INTERNAL_RANGE_H                                  /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_RANGE_H
/**
 * @author     Ruby developers <ruby-core@ruby-lang.org>
 * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
 *             Permission  is hereby  granted,  to  either redistribute  and/or
 *             modify this file, provided that  the conditions mentioned in the
 *             file COPYING are met.  Consult the file for details.
 * @brief      Internal header for Range.
 */
#include "internal/struct.h"    /* for RSTRUCT */

/* range.c */
static inline VALUE RANGE_BEG(VALUE r);
static inline VALUE RANGE_END(VALUE r);
static inline VALUE RANGE_EXCL(VALUE r);

static inline VALUE
RANGE_BEG(VALUE r)
{
    return RSTRUCT(r)->as.ary[0];
}

static inline VALUE
RANGE_END(VALUE r)
{
    return RSTRUCT_GET(r, 1);
}

static inline VALUE
RANGE_EXCL(VALUE r)
{
    return RSTRUCT_GET(r, 2);
}

VALUE
rb_range_component_beg_len(VALUE b, VALUE e, int excl,
                           long *begp, long *lenp, long len, int err);

#endif /* INTERNAL_RANGE_H */