c3-lang/libffi/testsuite/libffi.complex/complex_int.c

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• Hash : c952a92e
  Author :
  Date : 2014-11-14T11:00:14
  

  testsuite: Move complex tests to their own subdirectory It seems a bit silly to isolate them by globbing vs "*complex*" when we can just as easily put them in their own subdirectory.

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• testsuite/libffi.complex/complex_int.c

• /* Area:	ffi_call
     Purpose:	Check non-standard complex types.
     Limitations:	none.
     PR:		none.
     Originator:	<vogt@linux.vnet.ibm.com>.  */
  
  /* { dg-do run } */
  
  #include "ffitest.h"
  #include "ffi.h"
  #include <complex.h>
  
  _Complex int f_complex(_Complex int c, int x, int *py)
  {
    __real__ c = -2 * __real__ c;
    __imag__ c = __imag__ c + 1;
    *py += x;
    return c;
  }
  
  /*
   * This macro can be used to define new complex type descriptors
   * in a platform independent way.
   *
   * name: Name of the new descriptor is ffi_type_complex_<name>.
   * type: The C base type of the complex type.
   */
  #define FFI_COMPLEX_TYPEDEF(name, type, ffitype)	     \
    static ffi_type *ffi_elements_complex_##name [2] = {	     \
      (ffi_type *)(&ffitype), NULL			     \
    };							     \
    struct struct_align_complex_##name {			     \
      char c;						     \
      _Complex type x;					     \
    };							     \
    ffi_type ffi_type_complex_##name = {		     \
      sizeof(_Complex type),				     \
      offsetof(struct struct_align_complex_##name, x),	     \
      FFI_TYPE_COMPLEX,					     \
      (ffi_type **)ffi_elements_complex_##name		     \
    }
  
  /* Define new complex type descriptors using the macro: */
  /* ffi_type_complex_sint */
  FFI_COMPLEX_TYPEDEF(sint, int, ffi_type_sint);
  /* ffi_type_complex_uchar */
  FFI_COMPLEX_TYPEDEF(uchar, unsigned char, ffi_type_uint8);
  
  int main (void)
  {
    ffi_cif cif;
    ffi_type *args[MAX_ARGS];
    void *values[MAX_ARGS];
  
    _Complex int tc_arg;
    _Complex int tc_result;
    int tc_int_arg_x;
    int tc_y;
    int *tc_ptr_arg_y = &tc_y;
  
    args[0] = &ffi_type_complex_sint;
    args[1] = &ffi_type_sint;
    args[2] = &ffi_type_pointer;
    values[0] = &tc_arg;
    values[1] = &tc_int_arg_x;
    values[2] = &tc_ptr_arg_y;
  
    /* Initialize the cif */
    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 3, &ffi_type_complex_sint, args)
  	== FFI_OK);
  
    tc_arg = 1 + 7 * I;
    tc_int_arg_x = 1234;
    tc_y = 9876;
    ffi_call(&cif, FFI_FN(f_complex), &tc_result, values);
  
    printf ("%d,%di %d,%di, x %d 1234, y %d 11110\n",
  	  (int)tc_result, (int)(tc_result * -I), 2, 8, tc_int_arg_x, tc_y);
    /* dg-output "-2,8i 2,8i, x 1234 1234, y 11110 11110" */
    CHECK (creal (tc_result) == -2);
    CHECK (cimag (tc_result) == 8);
    CHECK (tc_int_arg_x == 1234);
    CHECK (*tc_ptr_arg_y == 11110);
  
    exit(0);
  }
  

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