// Need limited C API version 3.13 for Py_mod_gil
#include "pyconfig.h"   // Py_GIL_DISABLED
#ifndef Py_GIL_DISABLED
#  define Py_LIMITED_API 0x030d0000
#endif

// gh-85283: On Windows, Py_LIMITED_API requires Py_BUILD_CORE to not attempt
// linking the extension to python3.lib (which fails). Py_BUILD_CORE_MODULE is
// needed to import Python symbols. Then Python.h undefines Py_BUILD_CORE and
// Py_BUILD_CORE_MODULE if Py_LIMITED_API is defined.
#define Py_BUILD_CORE
#define Py_BUILD_CORE_MODULE

#include <Python.h>

#ifdef thread_local
#  define _Py_thread_local thread_local
#elif __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__)
#  define _Py_thread_local _Thread_local
#elif defined(_MSC_VER)  /* AKA NT_THREADS */
#  define _Py_thread_local __declspec(thread)
#elif defined(__GNUC__)  /* includes clang */
#  define _Py_thread_local __thread
#endif

#if defined(_Py_FFI_SUPPORT_C_COMPLEX)
#  include <complex.h>            // csqrt()
#  undef I                        // for _ctypes_test_generated.c.h
#endif
#include <stdio.h>                // printf()
#include <stdlib.h>               // qsort()
#include <string.h>               // memset()
#ifdef MS_WIN32
#  include <windows.h>
#endif

#define EXPORT(x) Py_EXPORTED_SYMBOL x

#include "_ctypes_test_generated.c.h"

/* some functions handy for testing */

EXPORT(int)
_testfunc_cbk_reg_int(int a, int b, int c, int d, int e,
                      int (*func)(int, int, int, int, int))
{
    return func(a*a, b*b, c*c, d*d, e*e);
}

EXPORT(double)
_testfunc_cbk_reg_double(double a, double b, double c, double d, double e,
                         double (*func)(double, double, double, double, double))
{
    return func(a*a, b*b, c*c, d*d, e*e);
}

/*
 * This structure should be the same as in test_callbacks.py and the
 * method test_callback_large_struct. See issues 17310 and 20160: the
 * structure must be larger than 8 bytes long.
 */

typedef struct {
    unsigned long first;
    unsigned long second;
    unsigned long third;
} Test;

EXPORT(void)
_testfunc_cbk_large_struct(Test in, void (*func)(Test))
{
    func(in);
}

/*
 * See issue 29565. Update a structure passed by value;
 * the caller should not see any change.
 */

EXPORT(void)
_testfunc_large_struct_update_value(Test in)
{
    ((volatile Test *)&in)->first = 0x0badf00d;
    ((volatile Test *)&in)->second = 0x0badf00d;
    ((volatile Test *)&in)->third = 0x0badf00d;
}

typedef struct {
    unsigned int first;
    unsigned int second;
} TestReg;


_Py_thread_local TestReg last_tfrsuv_arg = {0};


EXPORT(void)
_testfunc_reg_struct_update_value(TestReg in)
{
    last_tfrsuv_arg = in;
    ((volatile TestReg *)&in)->first = 0x0badf00d;
    ((volatile TestReg *)&in)->second = 0x0badf00d;
}

/*
 * See bpo-22273. Structs containing arrays should work on Linux 64-bit.
 */

typedef struct {
    unsigned char data[16];
} Test2;

EXPORT(int)
_testfunc_array_in_struct2(Test2 in)
{
    int result = 0;
    for (unsigned i = 0; i < sizeof(in.data)/sizeof(in.data[0]); i++)
        result += in.data[i];
    /* As the structure is passed by value, changes to it shouldn't be
     * reflected in the caller.
     */
    memset(in.data, 0, sizeof(in.data));
    return result;
}

/*
 * Test3A struct test the MAX_STRUCT_SIZE 16 with single precision floats.
 * These structs should be passed via registers on all platforms and they are
 * used for within bounds tests.
 */
typedef struct {
    float data[2];
    float more_data[2];
} Test3A;

EXPORT(double)
_testfunc_array_in_struct3A(Test3A in)
{
    double result = 0;

    for (unsigned i = 0; i < sizeof(in.data)/sizeof(in.data[0]); i++)
        result += in.data[i];
    for (unsigned i = 0; i < sizeof(in.more_data)/sizeof(in.more_data[0]); i++)
        result += in.more_data[i];
    /* As the structure is passed by value, changes to it shouldn't be
     * reflected in the caller.
     */
    memset(in.data, 0, sizeof(in.data));
    return result;
}

/* The structs Test3B..Test3E use the same functions hence using the MACRO
 * to define their implementation.
 */

#define _TESTFUNC_ARRAY_IN_STRUCT_IMPL                                  \
    double result = 0;                                                  \
                                                                        \
    for (unsigned i = 0; i < sizeof(in.data)/sizeof(in.data[0]); i++)   \
        result += in.data[i];                                           \
    /* As the structure is passed by value, changes to it shouldn't be  \
     * reflected in the caller.                                         \
     */                                                                 \
    memset(in.data, 0, sizeof(in.data));                                \
    return result;                                                      \

#define _TESTFUNC_ARRAY_IN_STRUCT_SET_DEFAULTS_IMPL                     \
    for (unsigned i = 0; i < sizeof(s.data)/sizeof(s.data[0]); i++)     \
        s.data[i] = (double)i+1;                                        \
    return s;                                                           \


/*
 * Test3B struct test the MAX_STRUCT_SIZE 16 with double precision floats.
 * These structs should be passed via registers on all platforms and they are
 * used for within bounds tests.
 */
typedef struct {
    double data[2];
} Test3B;

EXPORT(double)
_testfunc_array_in_struct3B(Test3B in)
{
    _TESTFUNC_ARRAY_IN_STRUCT_IMPL
}

EXPORT(Test3B)
_testfunc_array_in_struct3B_set_defaults(void)
{
    Test3B s;
    _TESTFUNC_ARRAY_IN_STRUCT_SET_DEFAULTS_IMPL
}

/*
 * Test3C struct tests the MAX_STRUCT_SIZE 32. Structs containing arrays of up
 * to four floating-point types are passed in registers on Arm platforms.
 * This struct is used for within-bounds tests on Arm platforms and for an
 * out-of-bounds test for platforms where MAX_STRUCT_SIZE is less than 32.
 * See gh-110190.
 */
typedef struct {
    double data[4];
} Test3C;

EXPORT(double)
_testfunc_array_in_struct3C(Test3C in)
{
    _TESTFUNC_ARRAY_IN_STRUCT_IMPL
}

EXPORT(Test3C)
_testfunc_array_in_struct3C_set_defaults(void)
{
    Test3C s;
    _TESTFUNC_ARRAY_IN_STRUCT_SET_DEFAULTS_IMPL
}

/*
 * Test3D struct tests the MAX_STRUCT_SIZE 64. Structs containing arrays of up
 * to eight floating-point types are passed in registers on PPC64LE platforms.
 * This struct is used for within bounds test on PPC64LE platforms and for an
 * out-of-bounds tests for platforms where MAX_STRUCT_SIZE is less than 64.
 * See gh-110190.
 */
typedef struct {
    double data[8];
} Test3D;

EXPORT(double)
_testfunc_array_in_struct3D(Test3D in)
{
    _TESTFUNC_ARRAY_IN_STRUCT_IMPL
}

EXPORT(Test3D)
_testfunc_array_in_struct3D_set_defaults(void)
{
    Test3D s;
    _TESTFUNC_ARRAY_IN_STRUCT_SET_DEFAULTS_IMPL
}

/*
 * Test3E struct tests the out-of-bounds for all architectures.
 * See gh-110190.
 */
typedef struct {
    double data[9];
} Test3E;

EXPORT(double)
_testfunc_array_in_struct3E(Test3E in)
{
    _TESTFUNC_ARRAY_IN_STRUCT_IMPL
}

EXPORT(Test3E)
_testfunc_array_in_struct3E_set_defaults(void)
{
    Test3E s;
    _TESTFUNC_ARRAY_IN_STRUCT_SET_DEFAULTS_IMPL
}

typedef union {
    long a_long;
    struct {
        int an_int;
        int another_int;
    } a_struct;
} Test4;

typedef struct {
    int an_int;
    struct {
        int an_int;
        Test4 a_union;
    } nested;
    int another_int;
} Test5;

EXPORT(long)
_testfunc_union_by_value1(Test4 in) {
    long result = in.a_long + in.a_struct.an_int + in.a_struct.another_int;

    /* As the union/struct are passed by value, changes to them shouldn't be
     * reflected in the caller.
     */
    memset(&in, 0, sizeof(in));
    return result;
}

EXPORT(long)
_testfunc_union_by_value2(Test5 in) {
    long result = in.an_int + in.nested.an_int;

    /* As the union/struct are passed by value, changes to them shouldn't be
     * reflected in the caller.
     */
    memset(&in, 0, sizeof(in));
    return result;
}

EXPORT(long)
_testfunc_union_by_reference1(Test4 *in) {
    long result = in->a_long;

    memset(in, 0, sizeof(Test4));
    return result;
}

EXPORT(long)
_testfunc_union_by_reference2(Test4 *in) {
    long result = in->a_struct.an_int + in->a_struct.another_int;

    memset(in, 0, sizeof(Test4));
    return result;
}

EXPORT(long)
_testfunc_union_by_reference3(Test5 *in) {
    long result = in->an_int + in->nested.an_int + in->another_int;

    memset(in, 0, sizeof(Test5));
    return result;
}

typedef struct {
    signed int A: 1, B:2, C:3, D:2;
} Test6;

EXPORT(long)
_testfunc_bitfield_by_value1(Test6 in) {
    long result = in.A + in.B + in.C + in.D;

    /* As the struct is passed by value, changes to it shouldn't be
     * reflected in the caller.
     */
    memset(&in, 0, sizeof(in));
    return result;
}

EXPORT(long)
_testfunc_bitfield_by_reference1(Test6 *in) {
    long result = in->A + in->B + in->C + in->D;

    memset(in, 0, sizeof(Test6));
    return result;
}

typedef struct {
    unsigned int A: 1, B:2, C:3, D:2;
} Test7;

EXPORT(long)
_testfunc_bitfield_by_reference2(Test7 *in) {
    long result = in->A + in->B + in->C + in->D;

    memset(in, 0, sizeof(Test7));
    return result;
}

typedef struct{
    uint16_t A ;
    uint16_t B : 9;
    uint16_t C : 1;
    uint16_t D : 1;
    uint16_t E : 1;
    uint16_t F : 1;
    uint16_t G : 3;
    uint32_t H : 10;
    uint32_t I : 20;
    uint32_t J : 2;
} Test9;

EXPORT(long)
_testfunc_bitfield_by_reference3(Test9 *in, long pos) {
    long data[] = {in->A , in->B , in->C , in->D , in->E , in->F , in->G , in->H , in->I , in->J};
    long data_length = (long) (sizeof(data)/sizeof(data[0]));
    if(pos < 0)
        return -1;
    if(pos >= data_length)
        return -1;

    return data[pos];
}

typedef union {
    signed int A: 1, B:2, C:3, D:2;
} Test8;

EXPORT(long)
_testfunc_bitfield_by_value2(Test8 in) {
    long result = in.A + in.B + in.C + in.D;

    /* As the struct is passed by value, changes to it shouldn't be
     * reflected in the caller.
     */
    memset(&in, 0, sizeof(in));
    return result;
}

EXPORT(void)testfunc_array(int values[4])
{
    printf("testfunc_array %d %d %d %d\n",
           values[0],
           values[1],
           values[2],
           values[3]);
}

EXPORT(long double)testfunc_Ddd(double a, double b)
{
    long double result = (long double)(a * b);
    printf("testfunc_Ddd(%p, %p)\n", (void *)&a, (void *)&b);
    printf("testfunc_Ddd(%g, %g)\n", a, b);
    return result;
}

EXPORT(long double)testfunc_DDD(long double a, long double b)
{
    long double result = a * b;
    printf("testfunc_DDD(%p, %p)\n", (void *)&a, (void *)&b);
    printf("testfunc_DDD(%Lg, %Lg)\n", a, b);
    return result;
}

EXPORT(int)testfunc_iii(int a, int b)
{
    int result = a * b;
    printf("testfunc_iii(%p, %p)\n", (void *)&a, (void *)&b);
    return result;
}

EXPORT(int)myprintf(char *fmt, ...)
{
    int result;
    va_list argptr;
    va_start(argptr, fmt);
    result = vprintf(fmt, argptr);
    va_end(argptr);
    return result;
}

EXPORT(char *)my_strtok(char *token, const char *delim)
{
    return strtok(token, delim);
}

EXPORT(char *)my_strchr(const char *s, int c)
{
    return strchr(s, c);
}


EXPORT(double) my_sqrt(double a)
{
    return sqrt(a);
}

#if defined(_Py_FFI_SUPPORT_C_COMPLEX)
EXPORT(double complex) my_csqrt(double complex a)
{
    return csqrt(a);
}

EXPORT(float complex) my_csqrtf(float complex a)
{
    return csqrtf(a);
}

EXPORT(long double complex) my_csqrtl(long double complex a)
{
    return csqrtl(a);
}
#endif

EXPORT(void) my_qsort(void *base, size_t num, size_t width, int(*compare)(const void*, const void*))
{
    qsort(base, num, width, compare);
}

EXPORT(int *) _testfunc_ai8(int a[8])
{
    return a;
}

EXPORT(void) _testfunc_v(int a, int b, int *presult)
{
    *presult = a + b;
}

EXPORT(int) _testfunc_i_bhilfd(signed char b, short h, int i, long l, float f, double d)
{
/*      printf("_testfunc_i_bhilfd got %d %d %d %ld %f %f\n",
               b, h, i, l, f, d);
*/
    return (int)(b + h + i + l + f + d);
}

EXPORT(float) _testfunc_f_bhilfd(signed char b, short h, int i, long l, float f, double d)
{
/*      printf("_testfunc_f_bhilfd got %d %d %d %ld %f %f\n",
               b, h, i, l, f, d);
*/
    return (float)(b + h + i + l + f + d);
}

EXPORT(double) _testfunc_d_bhilfd(signed char b, short h, int i, long l, float f, double d)
{
/*      printf("_testfunc_d_bhilfd got %d %d %d %ld %f %f\n",
               b, h, i, l, f, d);
*/
    return (double)(b + h + i + l + f + d);
}

EXPORT(long double) _testfunc_D_bhilfD(signed char b, short h, int i, long l, float f, long double d)
{
/*      printf("_testfunc_d_bhilfd got %d %d %d %ld %f %f\n",
               b, h, i, l, f, d);
*/
    return (long double)(b + h + i + l + f + d);
}

EXPORT(char *) _testfunc_p_p(void *s)
{
    return (char *)s;
}

EXPORT(void *) _testfunc_c_p_p(int *argcp, char **argv)
{
    return argv[(*argcp)-1];
}

EXPORT(void *) get_strchr(void)
{
    return (void *)strchr;
}

EXPORT(char *) my_strdup(char *src)
{
    char *dst = (char *)malloc(strlen(src)+1);
    if (!dst)
        return NULL;
    strcpy(dst, src);
    return dst;
}

EXPORT(void)my_free(void *ptr)
{
    free(ptr);
}

#ifdef HAVE_WCHAR_H
EXPORT(wchar_t *) my_wcsdup(wchar_t *src)
{
    size_t len = wcslen(src);
    wchar_t *ptr = (wchar_t *)malloc((len + 1) * sizeof(wchar_t));
    if (ptr == NULL)
        return NULL;
    memcpy(ptr, src, (len+1) * sizeof(wchar_t));
    return ptr;
}

EXPORT(size_t) my_wcslen(wchar_t *src)
{
    return wcslen(src);
}
#endif

#ifndef MS_WIN32
# ifndef __stdcall
#  define __stdcall /* */
# endif
#endif

typedef struct {
    int (*c)(int, int);
    int (__stdcall *s)(int, int);
} FUNCS;

EXPORT(int) _testfunc_callfuncp(FUNCS *fp)
{
    fp->c(1, 2);
    fp->s(3, 4);
    return 0;
}

EXPORT(int) _testfunc_deref_pointer(int *pi)
{
    return *pi;
}

#ifdef MS_WIN32
EXPORT(int) _testfunc_piunk(IUnknown FAR *piunk)
{
    piunk->lpVtbl->AddRef(piunk);
    return piunk->lpVtbl->Release(piunk);
}
#endif

EXPORT(int) _testfunc_callback_with_pointer(int (*func)(int *))
{
    int table[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    return (*func)(table);
}

EXPORT(long long) _testfunc_q_bhilfdq(signed char b, short h, int i, long l, float f,
                                      double d, long long q)
{
    return (long long)(b + h + i + l + f + d + q);
}

EXPORT(long long) _testfunc_q_bhilfd(signed char b, short h, int i, long l, float f, double d)
{
    return (long long)(b + h + i + l + f + d);
}

EXPORT(int) _testfunc_callback_i_if(int value, int (*func)(int))
{
    int sum = 0;
    while (value != 0) {
        sum += func(value);
        value /= 2;
    }
    return sum;
}

EXPORT(long long) _testfunc_callback_q_qf(long long value,
                                          long long (*func)(long long))
{
    long long sum = 0;

    while (value != 0) {
        sum += func(value);
        value /= 2;
    }
    return sum;
}

typedef struct {
    char *name;
    char *value;
} SPAM;

typedef struct {
    char *name;
    int num_spams;
    SPAM *spams;
} EGG;

SPAM my_spams[2] = {
    { "name1", "value1" },
    { "name2", "value2" },
};

EGG my_eggs[1] = {
    { "first egg", 1, my_spams }
};

EXPORT(int) getSPAMANDEGGS(EGG **eggs)
{
    *eggs = my_eggs;
    return 1;
}

typedef struct tagpoint {
    int x;
    int y;
} point;

EXPORT(int) _testfunc_byval(point in, point *pout)
{
    if (pout) {
        pout->x = in.x;
        pout->y = in.y;
    }
    return in.x + in.y;
}

EXPORT (int) an_integer = 42;

EXPORT(int) get_an_integer(void)
{
    return an_integer;
}

EXPORT(double)
integrate(double a, double b, double (*f)(double), long nstep)
{
    double x, sum=0.0, dx=(b-a)/(double)nstep;
    for(x=a+0.5*dx; (b-x)*(x-a)>0.0; x+=dx)
        sum += f(x);
    return sum/(double)nstep;
}

typedef struct {
    void (*initialize)(void *(*)(int), void(*)(void *));
} xxx_library;

static void _xxx_init(void *(*Xalloc)(int), void (*Xfree)(void *))
{
    void *ptr;

    printf("_xxx_init got %p %p\n", (void *)Xalloc, (void *)Xfree);
    printf("calling\n");
    ptr = Xalloc(32);
    Xfree(ptr);
    printf("calls done, ptr was %p\n", ptr);
}

xxx_library _xxx_lib = {
    _xxx_init
};

EXPORT(xxx_library) *library_get(void)
{
    return &_xxx_lib;
}

#ifdef MS_WIN32
/* See Don Box (german), pp 79ff. */
EXPORT(void) GetString(BSTR *pbstr)
{
    *pbstr = SysAllocString(L"Goodbye!");
}
#endif

/*
 * Some do-nothing functions, for speed tests
 */
PyObject *py_func_si(PyObject *self, PyObject *args)
{
    char *name;
    int i;
    if (!PyArg_ParseTuple(args, "si", &name, &i))
        return NULL;
    Py_RETURN_NONE;
}

EXPORT(void) _py_func_si(char *s, int i)
{
}

PyObject *py_func(PyObject *self, PyObject *args)
{
    Py_RETURN_NONE;
}

EXPORT(void) _py_func(void)
{
}

_Py_thread_local long long last_tf_arg_s = 0;
_Py_thread_local unsigned long long last_tf_arg_u = 0;

struct BITS {
    signed int A: 1, B:2, C:3, D:4, E: 5, F: 6, G: 7, H: 8, I: 9;
/*
 * The test case needs/uses "signed short" bitfields, but the
 * IBM XLC compiler does not support this
 */
#ifndef __xlc__
#define SIGNED_SHORT_BITFIELDS
    signed short M: 1, N: 2, O: 3, P: 4, Q: 5, R: 6, S: 7;
#endif
};

EXPORT(int) unpack_bitfields(struct BITS *bits, char name)
{
    switch (name) {
    case 'A': return bits->A;
    case 'B': return bits->B;
    case 'C': return bits->C;
    case 'D': return bits->D;
    case 'E': return bits->E;
    case 'F': return bits->F;
    case 'G': return bits->G;
    case 'H': return bits->H;
    case 'I': return bits->I;

#ifdef SIGNED_SHORT_BITFIELDS
    case 'M': return bits->M;
    case 'N': return bits->N;
    case 'O': return bits->O;
    case 'P': return bits->P;
    case 'Q': return bits->Q;
    case 'R': return bits->R;
    case 'S': return bits->S;
#endif
    }
    return 999;
}

#if (defined(MS_WIN32) || ((defined(__x86_64__) || defined(__i386__) || defined(__ppc64__)) && (defined(__GNUC__) || defined(__clang__))))
struct
#ifndef MS_WIN32
__attribute__ ((ms_struct))
#endif
BITS_msvc
{
    signed int A: 1, B:2, C:3, D:4, E: 5, F: 6, G: 7, H: 8, I: 9;
/*
 * The test case needs/uses "signed short" bitfields, but the
 * IBM XLC compiler does not support this
 */
#ifndef __xlc__
#define SIGNED_SHORT_BITFIELDS
    signed short M: 1, N: 2, O: 3, P: 4, Q: 5, R: 6, S: 7;
#endif
};

EXPORT(int) unpack_bitfields_msvc(struct BITS_msvc *bits, char name)
{
    switch (name) {
    case 'A': return bits->A;
    case 'B': return bits->B;
    case 'C': return bits->C;
    case 'D': return bits->D;
    case 'E': return bits->E;
    case 'F': return bits->F;
    case 'G': return bits->G;
    case 'H': return bits->H;
    case 'I': return bits->I;

#ifdef SIGNED_SHORT_BITFIELDS
    case 'M': return bits->M;
    case 'N': return bits->N;
    case 'O': return bits->O;
    case 'P': return bits->P;
    case 'Q': return bits->Q;
    case 'R': return bits->R;
    case 'S': return bits->S;
#endif
    }
    return 999;
}
#endif

PyObject *get_last_tf_arg_s(PyObject *self, PyObject *noargs)
{
    return PyLong_FromLongLong(last_tf_arg_s);
}

PyObject *get_last_tf_arg_u(PyObject *self, PyObject *noargs)
{
    return PyLong_FromUnsignedLongLong(last_tf_arg_u);
}

EXPORT(TestReg) get_last_tfrsuv_arg(void)
{
    return last_tfrsuv_arg;
}

static PyMethodDef module_methods[] = {
    {"get_last_tf_arg_s", get_last_tf_arg_s, METH_NOARGS},
    {"get_last_tf_arg_u", get_last_tf_arg_u, METH_NOARGS},
    {"func_si", py_func_si, METH_VARARGS},
    {"func", py_func, METH_NOARGS},
    {"get_generated_test_data", get_generated_test_data, METH_O},
    { NULL, NULL, 0, NULL},
};

#define S last_tf_arg_s = (long long)c
#define U last_tf_arg_u = (unsigned long long)c

EXPORT(signed char) tf_b(signed char c) { S; return c/3; }
EXPORT(unsigned char) tf_B(unsigned char c) { U; return c/3; }
EXPORT(short) tf_h(short c) { S; return c/3; }
EXPORT(unsigned short) tf_H(unsigned short c) { U; return c/3; }
EXPORT(int) tf_i(int c) { S; return c/3; }
EXPORT(unsigned int) tf_I(unsigned int c) { U; return c/3; }
EXPORT(long) tf_l(long c) { S; return c/3; }
EXPORT(unsigned long) tf_L(unsigned long c) { U; return c/3; }
EXPORT(long long) tf_q(long long c) { S; return c/3; }
EXPORT(unsigned long long) tf_Q(unsigned long long c) { U; return c/3; }
EXPORT(float) tf_f(float c) { S; return c/3; }
EXPORT(double) tf_d(double c) { S; return c/3; }
EXPORT(long double) tf_D(long double c) { S; return c/3; }

#ifdef MS_WIN32
EXPORT(signed char) __stdcall s_tf_b(signed char c) { S; return c/3; }
EXPORT(unsigned char) __stdcall s_tf_B(unsigned char c) { U; return c/3; }
EXPORT(short) __stdcall s_tf_h(short c) { S; return c/3; }
EXPORT(unsigned short) __stdcall s_tf_H(unsigned short c) { U; return c/3; }
EXPORT(int) __stdcall s_tf_i(int c) { S; return c/3; }
EXPORT(unsigned int) __stdcall s_tf_I(unsigned int c) { U; return c/3; }
EXPORT(long) __stdcall s_tf_l(long c) { S; return c/3; }
EXPORT(unsigned long) __stdcall s_tf_L(unsigned long c) { U; return c/3; }
EXPORT(long long) __stdcall s_tf_q(long long c) { S; return c/3; }
EXPORT(unsigned long long) __stdcall s_tf_Q(unsigned long long c) { U; return c/3; }
EXPORT(float) __stdcall s_tf_f(float c) { S; return c/3; }
EXPORT(double) __stdcall s_tf_d(double c) { S; return c/3; }
EXPORT(long double) __stdcall s_tf_D(long double c) { S; return c/3; }
#endif
/*******/

EXPORT(signed char) tf_bb(signed char x, signed char c) { S; return c/3; }
EXPORT(unsigned char) tf_bB(signed char x, unsigned char c) { U; return c/3; }
EXPORT(short) tf_bh(signed char x, short c) { S; return c/3; }
EXPORT(unsigned short) tf_bH(signed char x, unsigned short c) { U; return c/3; }
EXPORT(int) tf_bi(signed char x, int c) { S; return c/3; }
EXPORT(unsigned int) tf_bI(signed char x, unsigned int c) { U; return c/3; }
EXPORT(long) tf_bl(signed char x, long c) { S; return c/3; }
EXPORT(unsigned long) tf_bL(signed char x, unsigned long c) { U; return c/3; }
EXPORT(long long) tf_bq(signed char x, long long c) { S; return c/3; }
EXPORT(unsigned long long) tf_bQ(signed char x, unsigned long long c) { U; return c/3; }
EXPORT(float) tf_bf(signed char x, float c) { S; return c/3; }
EXPORT(double) tf_bd(signed char x, double c) { S; return c/3; }
EXPORT(long double) tf_bD(signed char x, long double c) { S; return c/3; }
EXPORT(void) tv_i(int c) { S; return; }

#ifdef MS_WIN32
EXPORT(signed char) __stdcall s_tf_bb(signed char x, signed char c) { S; return c/3; }
EXPORT(unsigned char) __stdcall s_tf_bB(signed char x, unsigned char c) { U; return c/3; }
EXPORT(short) __stdcall s_tf_bh(signed char x, short c) { S; return c/3; }
EXPORT(unsigned short) __stdcall s_tf_bH(signed char x, unsigned short c) { U; return c/3; }
EXPORT(int) __stdcall s_tf_bi(signed char x, int c) { S; return c/3; }
EXPORT(unsigned int) __stdcall s_tf_bI(signed char x, unsigned int c) { U; return c/3; }
EXPORT(long) __stdcall s_tf_bl(signed char x, long c) { S; return c/3; }
EXPORT(unsigned long) __stdcall s_tf_bL(signed char x, unsigned long c) { U; return c/3; }
EXPORT(long long) __stdcall s_tf_bq(signed char x, long long c) { S; return c/3; }
EXPORT(unsigned long long) __stdcall s_tf_bQ(signed char x, unsigned long long c) { U; return c/3; }
EXPORT(float) __stdcall s_tf_bf(signed char x, float c) { S; return c/3; }
EXPORT(double) __stdcall s_tf_bd(signed char x, double c) { S; return c/3; }
EXPORT(long double) __stdcall s_tf_bD(signed char x, long double c) { S; return c/3; }
EXPORT(void) __stdcall s_tv_i(int c) { S; return; }
#endif

/********/

#ifndef MS_WIN32

typedef struct {
    long x;
    long y;
} POINT;

typedef struct {
    long left;
    long top;
    long right;
    long bottom;
} RECT;

#endif

EXPORT(int) PointInRect(RECT *prc, POINT pt)
{
    if (pt.x < prc->left)
        return 0;
    if (pt.x > prc->right)
        return 0;
    if (pt.y < prc->top)
        return 0;
    if (pt.y > prc->bottom)
        return 0;
    return 1;
}

EXPORT(long left = 10);
EXPORT(long top = 20);
EXPORT(long right = 30);
EXPORT(long bottom = 40);

EXPORT(RECT) ReturnRect(int i, RECT ar, RECT* br, POINT cp, RECT dr,
                        RECT *er, POINT fp, RECT gr)
{
    /*Check input */
    if (ar.left + br->left + dr.left + er->left + gr.left != left * 5)
    {
        ar.left = 100;
        return ar;
    }
    if (ar.right + br->right + dr.right + er->right + gr.right != right * 5)
    {
        ar.right = 100;
        return ar;
    }
    if (cp.x != fp.x)
    {
        ar.left = -100;
    }
    if (cp.y != fp.y)
    {
        ar.left = -200;
    }
    switch(i)
    {
    case 0:
        return ar;
    case 1:
        return dr;
    case 2:
        return gr;

    }
    return ar;
}

typedef struct {
    short x;
    short y;
} S2H;

EXPORT(S2H) ret_2h_func(S2H inp)
{
    inp.x *= 2;
    inp.y *= 3;
    return inp;
}

typedef struct {
    int a, b, c, d, e, f, g, h;
} S8I;

EXPORT(S8I) ret_8i_func(S8I inp)
{
    inp.a *= 2;
    inp.b *= 3;
    inp.c *= 4;
    inp.d *= 5;
    inp.e *= 6;
    inp.f *= 7;
    inp.g *= 8;
    inp.h *= 9;
    return inp;
}

EXPORT(int) GetRectangle(int flag, RECT *prect)
{
    if (flag == 0)
        return 0;
    prect->left = (int)flag;
    prect->top = (int)flag + 1;
    prect->right = (int)flag + 2;
    prect->bottom = (int)flag + 3;
    return 1;
}

EXPORT(void) TwoOutArgs(int a, int *pi, int b, int *pj)
{
    *pi += a;
    *pj += b;
}

#ifdef MS_WIN32

typedef struct {
    char f1;
} Size1;

typedef struct {
    char f1;
    char f2;
} Size2;

typedef struct {
    char f1;
    char f2;
    char f3;
} Size3;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
} Size4;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
} Size5;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
    char f6;
} Size6;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
    char f6;
    char f7;
} Size7;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
    char f6;
    char f7;
    char f8;
} Size8;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
    char f6;
    char f7;
    char f8;
    char f9;
} Size9;

typedef struct {
    char f1;
    char f2;
    char f3;
    char f4;
    char f5;
    char f6;
    char f7;
    char f8;
    char f9;
    char f10;
} Size10;

EXPORT(Size1) TestSize1() {
    Size1 f;
    f.f1 = 'a';
    return f;
}

EXPORT(Size2) TestSize2() {
    Size2 f;
    f.f1 = 'a';
    f.f2 = 'b';
    return f;
}

EXPORT(Size3) TestSize3() {
    Size3 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    return f;
}

EXPORT(Size4) TestSize4() {
    Size4 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    return f;
}

EXPORT(Size5) TestSize5() {
    Size5 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    return f;
}

EXPORT(Size6) TestSize6() {
    Size6 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    f.f6 = 'f';
    return f;
}

EXPORT(Size7) TestSize7() {
    Size7 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    f.f6 = 'f';
    f.f7 = 'g';
    return f;
}

EXPORT(Size8) TestSize8() {
    Size8 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    f.f6 = 'f';
    f.f7 = 'g';
    f.f8 = 'h';
    return f;
}

EXPORT(Size9) TestSize9() {
    Size9 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    f.f6 = 'f';
    f.f7 = 'g';
    f.f8 = 'h';
    f.f9 = 'i';
    return f;
}

EXPORT(Size10) TestSize10() {
    Size10 f;
    f.f1 = 'a';
    f.f2 = 'b';
    f.f3 = 'c';
    f.f4 = 'd';
    f.f5 = 'e';
    f.f6 = 'f';
    f.f7 = 'g';
    f.f8 = 'h';
    f.f9 = 'i';
    f.f10 = 'j';
    return f;
}

#endif

#ifdef MS_WIN32
EXPORT(S2H) __stdcall s_ret_2h_func(S2H inp) { return ret_2h_func(inp); }
EXPORT(S8I) __stdcall s_ret_8i_func(S8I inp) { return ret_8i_func(inp); }
#endif

#ifdef MS_WIN32
/* Should port this */
#include <stdlib.h>
#include <search.h>

EXPORT (HRESULT) KeepObject(IUnknown *punk)
{
    static IUnknown *pobj;
    if (punk)
        punk->lpVtbl->AddRef(punk);
    if (pobj)
        pobj->lpVtbl->Release(pobj);
    pobj = punk;
    return S_OK;
}

#endif

#ifdef MS_WIN32

// i38748: c stub for testing stack corruption
// When executing a Python callback with a long and a long long

typedef long(__stdcall *_test_i38748_funcType)(long, long long);

EXPORT(long) _test_i38748_runCallback(_test_i38748_funcType callback, int a, int b) {
    return callback(a, b);
}

#endif

EXPORT(int)
_testfunc_pylist_append(PyObject *list, PyObject *item)
{
    return PyList_Append(list, item);
}

static struct PyModuleDef_Slot _ctypes_test_slots[] = {
    {Py_mod_multiple_interpreters, Py_MOD_PER_INTERPRETER_GIL_SUPPORTED},
    {Py_mod_gil, Py_MOD_GIL_NOT_USED},
    {0, NULL}
};

static struct PyModuleDef _ctypes_testmodule = {
    PyModuleDef_HEAD_INIT,
    "_ctypes_test",
    NULL,
    0,
    module_methods,
    _ctypes_test_slots,
    NULL,
    NULL,
    NULL
};

PyMODINIT_FUNC
PyInit__ctypes_test(void)
{
    return PyModuleDef_Init(&_ctypes_testmodule);
}
