#ifndef _NPY_COMMON_H_
#define _NPY_COMMON_H_

/* numpconfig.h is auto-generated */
#include "numpyconfig.h"
#ifdef HAVE_NPY_CONFIG_H
#include <npy_config.h>
#endif

/* need Python.h for npy_intp, npy_uintp */
#include <Python.h>

/*
 * using static inline modifiers when defining npy_math functions
 * allows the compiler to make optimizations when possible
 */
#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD
#ifndef NPY_INLINE_MATH
#define NPY_INLINE_MATH 1
#endif
#endif

/*
 * gcc does not unroll even with -O3
 * use with care, unrolling on modern cpus rarely speeds things up
 */
#ifdef HAVE_ATTRIBUTE_OPTIMIZE_UNROLL_LOOPS
#define NPY_GCC_UNROLL_LOOPS \
    __attribute__((optimize("unroll-loops")))
#else
#define NPY_GCC_UNROLL_LOOPS
#endif

/* highest gcc optimization level, enabled autovectorizer */
#ifdef HAVE_ATTRIBUTE_OPTIMIZE_OPT_3
#define NPY_GCC_OPT_3 __attribute__((optimize("O3")))
#else
#define NPY_GCC_OPT_3
#endif

/* compile target attributes */
#if defined HAVE_ATTRIBUTE_TARGET_AVX && defined HAVE_LINK_AVX
#define NPY_GCC_TARGET_AVX __attribute__((target("avx")))
#else
#define NPY_GCC_TARGET_AVX
#endif
#if defined HAVE_ATTRIBUTE_TARGET_AVX2 && defined HAVE_LINK_AVX2
#define NPY_GCC_TARGET_AVX2 __attribute__((target("avx2")))
#else
#define NPY_GCC_TARGET_AVX2
#endif

/*
 * mark an argument (starting from 1) that must not be NULL and is not checked
 * DO NOT USE IF FUNCTION CHECKS FOR NULL!! the compiler will remove the check
 */
#ifdef HAVE_ATTRIBUTE_NONNULL
#define NPY_GCC_NONNULL(n) __attribute__((nonnull(n)))
#else
#define NPY_GCC_NONNULL(n)
#endif

#if defined HAVE_XMMINTRIN_H && defined HAVE__MM_LOAD_PS
#define NPY_HAVE_SSE_INTRINSICS
#endif

#if defined HAVE_EMMINTRIN_H && defined HAVE__MM_LOAD_PD
#define NPY_HAVE_SSE2_INTRINSICS
#endif

/*
 * give a hint to the compiler which branch is more likely or unlikely
 * to occur, e.g. rare error cases:
 *
 * if (NPY_UNLIKELY(failure == 0))
 *    return NULL;
 *
 * the double !! is to cast the expression (e.g. NULL) to a boolean required by
 * the intrinsic
 */
#ifdef HAVE___BUILTIN_EXPECT
#define NPY_LIKELY(x) __builtin_expect(!!(x), 1)
#define NPY_UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define NPY_LIKELY(x) (x)
#define NPY_UNLIKELY(x) (x)
#endif

#ifdef HAVE___BUILTIN_PREFETCH
/* unlike _mm_prefetch also works on non-x86 */
#define NPY_PREFETCH(x, rw, loc) __builtin_prefetch((x), (rw), (loc))
#else
#ifdef HAVE__MM_PREFETCH
/* _MM_HINT_ET[01] (rw = 1) unsupported, only available in gcc >= 4.9 */
#define NPY_PREFETCH(x, rw, loc) _mm_prefetch((x), loc == 0 ? _MM_HINT_NTA : \
                                             (loc == 1 ? _MM_HINT_T2 : \
                                              (loc == 2 ? _MM_HINT_T1 : \
                                               (loc == 3 ? _MM_HINT_T0 : -1))))
#else
#define NPY_PREFETCH(x, rw,loc)
#endif
#endif

#if defined(_MSC_VER)
        #define NPY_INLINE __inline
#elif defined(__GNUC__)
    #if defined(__STRICT_ANSI__)
         #define NPY_INLINE __inline__
    #else
         #define NPY_INLINE inline
    #endif
#else
    #define NPY_INLINE
#endif

#ifdef HAVE___THREAD
    #define NPY_TLS __thread
#else
    #ifdef HAVE___DECLSPEC_THREAD_
        #define NPY_TLS __declspec(thread)
    #else
        #define NPY_TLS
    #endif
#endif

#ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
  #define NPY_RETURNS_BORROWED_REF \
    __attribute__((cpychecker_returns_borrowed_ref))
#else
  #define NPY_RETURNS_BORROWED_REF
#endif

#ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
  #define NPY_STEALS_REF_TO_ARG(n) \
   __attribute__((cpychecker_steals_reference_to_arg(n)))
#else
 #define NPY_STEALS_REF_TO_ARG(n)
#endif

/* 64 bit file position support, also on win-amd64. Ticket #1660 */
#if defined(_MSC_VER) && defined(_WIN64) && (_MSC_VER > 1400) || \
    defined(__MINGW32__) || defined(__MINGW64__)
    #include <io.h>

/* mingw based on 3.4.5 has lseek but not ftell/fseek */
#if defined(__MINGW32__) || defined(__MINGW64__)
extern int __cdecl _fseeki64(FILE *, long long, int);
extern long long __cdecl _ftelli64(FILE *);
#endif

    #define npy_fseek _fseeki64
    #define npy_ftell _ftelli64
    #define npy_lseek _lseeki64
    #define npy_off_t npy_int64

    #if NPY_SIZEOF_INT == 8
        #define NPY_OFF_T_PYFMT "i"
    #elif NPY_SIZEOF_LONG == 8
        #define NPY_OFF_T_PYFMT "l"
    #elif NPY_SIZEOF_LONGLONG == 8
        #define NPY_OFF_T_PYFMT "L"
    #else
        #error Unsupported size for type off_t
    #endif
#else
#ifdef HAVE_FSEEKO
    #define npy_fseek fseeko
#else
    #define npy_fseek fseek
#endif
#ifdef HAVE_FTELLO
    #define npy_ftell ftello
#else
    #define npy_ftell ftell
#endif
    #include <sys/types.h>
    #define npy_lseek lseek
    #define npy_off_t off_t

    #if NPY_SIZEOF_OFF_T == NPY_SIZEOF_SHORT
        #define NPY_OFF_T_PYFMT "h"
    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_INT
        #define NPY_OFF_T_PYFMT "i"
    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONG
        #define NPY_OFF_T_PYFMT "l"
    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONGLONG
        #define NPY_OFF_T_PYFMT "L"
    #else
        #error Unsupported size for type off_t
    #endif
#endif

/* enums for detected endianness */
enum {
        NPY_CPU_UNKNOWN_ENDIAN,
        NPY_CPU_LITTLE,
        NPY_CPU_BIG
};

/*
 * This is to typedef npy_intp to the appropriate pointer size for this
 * platform.  Py_intptr_t, Py_uintptr_t are defined in pyport.h.
 */
typedef Py_intptr_t npy_intp;
typedef Py_uintptr_t npy_uintp;

/*
 * Define sizes that were not defined in numpyconfig.h.
 */
#define NPY_SIZEOF_CHAR 1
#define NPY_SIZEOF_BYTE 1
#define NPY_SIZEOF_DATETIME 8
#define NPY_SIZEOF_TIMEDELTA 8
#define NPY_SIZEOF_INTP NPY_SIZEOF_PY_INTPTR_T
#define NPY_SIZEOF_UINTP NPY_SIZEOF_PY_INTPTR_T
#define NPY_SIZEOF_HALF 2
#define NPY_SIZEOF_CFLOAT NPY_SIZEOF_COMPLEX_FLOAT
#define NPY_SIZEOF_CDOUBLE NPY_SIZEOF_COMPLEX_DOUBLE
#define NPY_SIZEOF_CLONGDOUBLE NPY_SIZEOF_COMPLEX_LONGDOUBLE

#ifdef constchar
#undef constchar
#endif

#define NPY_SSIZE_T_PYFMT "n"
#define constchar char

/* NPY_INTP_FMT Note:
 *      Unlike the other NPY_*_FMT macros which are used with
 *      PyOS_snprintf, NPY_INTP_FMT is used with PyErr_Format and
 *      PyString_Format. These functions use different formatting
 *      codes which are portably specified according to the Python
 *      documentation. See ticket #1795.
 */
#if NPY_SIZEOF_PY_INTPTR_T == NPY_SIZEOF_INT
        #define NPY_INTP NPY_INT
        #define NPY_UINTP NPY_UINT
        #define PyIntpArrType_Type PyIntArrType_Type
        #define PyUIntpArrType_Type PyUIntArrType_Type
        #define NPY_MAX_INTP NPY_MAX_INT
        #define NPY_MIN_INTP NPY_MIN_INT
        #define NPY_MAX_UINTP NPY_MAX_UINT
        #define NPY_INTP_FMT "d"
#elif NPY_SIZEOF_PY_INTPTR_T == NPY_SIZEOF_LONG
        #define NPY_INTP NPY_LONG
        #define NPY_UINTP NPY_ULONG
        #define PyIntpArrType_Type PyLongArrType_Type
        #define PyUIntpArrType_Type PyULongArrType_Type
        #define NPY_MAX_INTP NPY_MAX_LONG
        #define NPY_MIN_INTP NPY_MIN_LONG
        #define NPY_MAX_UINTP NPY_MAX_ULONG
        #define NPY_INTP_FMT "ld"
#elif defined(PY_LONG_LONG) && (NPY_SIZEOF_PY_INTPTR_T == NPY_SIZEOF_LONGLONG)
        #define NPY_INTP NPY_LONGLONG
        #define NPY_UINTP NPY_ULONGLONG
        #define PyIntpArrType_Type PyLongLongArrType_Type
        #define PyUIntpArrType_Type PyULongLongArrType_Type
        #define NPY_MAX_INTP NPY_MAX_LONGLONG
        #define NPY_MIN_INTP NPY_MIN_LONGLONG
        #define NPY_MAX_UINTP NPY_MAX_ULONGLONG
        #define NPY_INTP_FMT "lld"
#endif

/*
 * We can only use C99 formats for npy_int_p if it is the same as
 * intp_t, hence the condition on HAVE_UNITPTR_T
 */
#if (NPY_USE_C99_FORMATS) == 1 \
        && (defined HAVE_UINTPTR_T) \
        && (defined HAVE_INTTYPES_H)
        #include <inttypes.h>
        #undef NPY_INTP_FMT
        #define NPY_INTP_FMT PRIdPTR
#endif


/*
 * Some platforms don't define bool, long long, or long double.
 * Handle that here.
 */
#define NPY_BYTE_FMT "hhd"
#define NPY_UBYTE_FMT "hhu"
#define NPY_SHORT_FMT "hd"
#define NPY_USHORT_FMT "hu"
#define NPY_INT_FMT "d"
#define NPY_UINT_FMT "u"
#define NPY_LONG_FMT "ld"
#define NPY_ULONG_FMT "lu"
#define NPY_HALF_FMT "g"
#define NPY_FLOAT_FMT "g"
#define NPY_DOUBLE_FMT "g"


#ifdef PY_LONG_LONG
typedef PY_LONG_LONG npy_longlong;
typedef unsigned PY_LONG_LONG npy_ulonglong;
#  ifdef _MSC_VER
#    define NPY_LONGLONG_FMT         "I64d"
#    define NPY_ULONGLONG_FMT        "I64u"
#  else
#    define NPY_LONGLONG_FMT         "lld"
#    define NPY_ULONGLONG_FMT        "llu"
#  endif
#  ifdef _MSC_VER
#    define NPY_LONGLONG_SUFFIX(x)   (x##i64)
#    define NPY_ULONGLONG_SUFFIX(x)  (x##Ui64)
#  else
#    define NPY_LONGLONG_SUFFIX(x)   (x##LL)
#    define NPY_ULONGLONG_SUFFIX(x)  (x##ULL)
#  endif
#else
typedef long npy_longlong;
typedef unsigned long npy_ulonglong;
#  define NPY_LONGLONG_SUFFIX(x)  (x##L)
#  define NPY_ULONGLONG_SUFFIX(x) (x##UL)
#endif


typedef unsigned char npy_bool;
#define NPY_FALSE 0
#define NPY_TRUE 1


#if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE
        typedef double npy_longdouble;
        #define NPY_LONGDOUBLE_FMT "g"
#else
        typedef long double npy_longdouble;
        #define NPY_LONGDOUBLE_FMT "Lg"
#endif

#ifndef Py_USING_UNICODE
#error Must use Python with unicode enabled.
#endif


typedef signed char npy_byte;
typedef unsigned char npy_ubyte;
typedef unsigned short npy_ushort;
typedef unsigned int npy_uint;
typedef unsigned long npy_ulong;

/* These are for completeness */
typedef char npy_char;
typedef short npy_short;