#ifndef MISSING_H

#define MISSING_H 1

#if defined(__cplusplus)

extern "C" {

#if 0

} /* satisfy cc-mode */

#endif

#endif

#ifdef HAVE_STDLIB_H

# include <stdlib.h>

#endif

#ifdef HAVE_MATH_H

# include <math.h>

#endif

#ifndef RB_UNUSED_VAR

# if defined(_MSC_VER) && _MSC_VER >= 1911

# define RB_UNUSED_VAR(x) x [[maybe_unused]]

# elif defined(__has_cpp_attribute) && __has_cpp_attribute(maybe_unused)

# define RB_UNUSED_VAR(x) x [[maybe_unused]]

# elif defined(__has_c_attribute) && __has_c_attribute(maybe_unused)

# define RB_UNUSED_VAR(x) x [[maybe_unused]]

# elif defined(__GNUC__)

# define RB_UNUSED_VAR(x) x __attribute__ ((unused))

# else

# define RB_UNUSED_VAR(x) x

# endif

#endif /* RB_UNUSED_VAR */

#if defined(_MSC_VER) && _MSC_VER >= 1310

# define HAVE___ASSUME 1

#elif defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1300

# define HAVE___ASSUME 1

#endif

#ifndef UNREACHABLE

# if __has_builtin(__builtin_unreachable)

# define UNREACHABLE __builtin_unreachable()

# elif defined(HAVE___ASSUME)

# define UNREACHABLE __assume(0)

# else

# define UNREACHABLE /* unreachable */

# endif

#endif /* UNREACHABLE */

/* bool */

#if defined(__bool_true_false_are_defined)

# /* Take that. */

#elif defined(HAVE_STDBOOL_H)

# include <stdbool.h>

#else

typedef unsigned char _Bool;

# define bool _Bool

# define true ((_Bool)+1)

# define false ((_Bool)-1)

# define __bool_true_false_are_defined

#endif

/* abs */

#ifndef HAVE_LABS

static inline long

labs(long const x)

{

if (x < 0) return -x;

return x;

}

#endif

#ifndef HAVE_LLABS

static inline LONG_LONG

llabs(LONG_LONG const x)

{

if (x < 0) return -x;

return x;

}

#endif

#ifdef vabs

# undef vabs

#endif

#if SIZEOF_VALUE <= SIZEOF_INT

# define vabs abs

#elif SIZEOF_VALUE <= SIZEOF_LONG

# define vabs labs

#elif SIZEOF_VALUE <= SIZEOF_LONG_LONG

# define vabs llabs

#endif

/* finite */

#ifndef HAVE_FINITE

static int

finite(double)

{

return !isnan(n) && !isinf(n);

}

#endif

#ifndef isfinite

# ifndef HAVE_ISFINITE

# define HAVE_ISFINITE 1

# define isfinite(x) finite(x)

# endif

#endif

/* dtoa */

char *BigDecimal_dtoa(double d_, int mode, int ndigits, int *decpt, int *sign, char **rve);

/* rational */

#ifndef HAVE_RB_RATIONAL_NUM

static inline VALUE

rb_rational_num(VALUE rat)

{

#ifdef RRATIONAL

return RRATIONAL(rat)->num;

#else

return rb_funcall(rat, rb_intern("numerator"), 0);

#endif

}

#endif

#ifndef HAVE_RB_RATIONAL_DEN

static inline VALUE

rb_rational_den(VALUE rat)

{

#ifdef RRATIONAL

return RRATIONAL(rat)->den;

#else

return rb_funcall(rat, rb_intern("denominator"), 0);

#endif

}

#endif

/* complex */

#ifndef HAVE_RB_COMPLEX_REAL

static inline VALUE

rb_complex_real(VALUE cmp)

{

#ifdef RCOMPLEX

return RCOMPLEX(cmp)->real;

#else

return rb_funcall(cmp, rb_intern("real"), 0);

#endif

}

#endif

#ifndef HAVE_RB_COMPLEX_IMAG

static inline VALUE

rb_complex_imag(VALUE cmp)

{

# ifdef RCOMPLEX

return RCOMPLEX(cmp)->imag;

# else

return rb_funcall(cmp, rb_intern("imag"), 0);

# endif

}

#endif

/* st */

#ifndef ST2FIX

# undef RB_ST2FIX

# define RB_ST2FIX(h) LONG2FIX((long)(h))

# define ST2FIX(h) RB_ST2FIX(h)

#endif

/* warning */

#if !defined(HAVE_RB_CATEGORY_WARN) || !defined(HAVE_CONST_RB_WARN_CATEGORY_DEPRECATED)

# define rb_category_warn(category, ...) rb_warn(__VA_ARGS__)

#endif

#if defined(__cplusplus)

#if 0

{ /* satisfy cc-mode */

#endif

} /* extern "C" { */

#endif

#endif /* MISSING_H */