#include "moar.h"

#include <math.h>

#ifdef _WIN32

#include <float.h>

#endif

#if defined(INFINITY) && !defined(_AIX)

static const MVMnum64 MVM_NUM_POSINF =  INFINITY;

static const MVMnum64 MVM_NUM_NEGINF = -INFINITY;

#else

#  ifdef _MSC_VER

#define MVM_NUM_POSINF  (DBL_MAX+DBL_MAX)

#define MVM_NUM_NEGINF -(DBL_MAX+DBL_MAX)

#  else

static const MVMnum64 MVM_NUM_POSINF =  1.0 / 0.0;

static const MVMnum64 MVM_NUM_NEGINF = -1.0 / 0.0;

#  endif

#endif

#if defined(NAN) && !defined(_AIX)

static const MVMnum64 MVM_NUM_NAN = NAN;

#else

#  ifdef _MSC_VER

#define MVM_NUM_NAN (MVM_NUM_POSINF-MVM_NUM_POSINF)

#  else

static const MVMnum64 MVM_NUM_NAN = 0.0 / 0.0;

#  endif

#endif

MVMint64 MVM_num_isnanorinf(MVMThreadContext *tc, MVMnum64 n) {

    return n == MVM_NUM_POSINF || n == MVM_NUM_NEGINF || n != n;

}

MVMnum64 MVM_num_posinf(MVMThreadContext *tc) {

    return MVM_NUM_POSINF;

}

MVMnum64 MVM_num_neginf(MVMThreadContext *tc) {

    return MVM_NUM_NEGINF;

}

MVMnum64 MVM_num_nan(MVMThreadContext *tc) {

    return MVM_NUM_NAN;

}