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/*
* Copyright (c) 2008, 2009, Wayne Meissner
*
* Copyright (c) 2008-2013, Ruby FFI project contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Ruby FFI project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef RBFFI_COMPAT_H
#define RBFFI_COMPAT_H
#include <ruby.h>
#ifndef RARRAY_LEN
# define RARRAY_LEN(ary) RARRAY(ary)->len
#endif
#ifndef RARRAY_PTR
# define RARRAY_PTR(ary) RARRAY(ary)->ptr
#endif
#ifndef RSTRING_LEN
# define RSTRING_LEN(s) RSTRING(s)->len
#endif
#ifndef RSTRING_PTR
# define RSTRING_PTR(s) RSTRING(s)->ptr
#endif
#ifndef NUM2ULL
# define NUM2ULL(x) rb_num2ull((VALUE)x)
#endif
#ifndef roundup
# define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
#endif
#ifdef __GNUC__
# define likely(x) __builtin_expect((x), 1)
# define unlikely(x) __builtin_expect((x), 0)
#else
# define likely(x) (x)
# define unlikely(x) (x)
#endif
#ifdef _MSC_VER
#define ffi_type_longdouble ffi_type_double
#endif
#ifndef MAX
# define MAX(a, b) ((a) < (b) ? (b) : (a))
#endif
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
#ifndef RB_GC_GUARD
# define RB_GC_GUARD(x) (x)
#endif
#ifdef HAVE_RB_GC_MARK_MOVABLE
#define ffi_compact_callback(x) .dcompact = (x),
#define ffi_gc_location(x) x = rb_gc_location(x)
#else
#define rb_gc_mark_movable(x) rb_gc_mark(x)
#define ffi_compact_callback(x)
#define ffi_gc_location(x)
#endif
#endif /* RBFFI_COMPAT_H */
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