libffi/testsuite/libffi.call/many.c

   1 /* Area:        ffi_call
   2    Purpose:     Check return value float, with many arguments
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  From the original ffitest.c  */
   6
   7 /* { dg-do run } */
   8 #include "ffitest.h"
   9
  10 #include <stdlib.h>
  11 #include <float.h>
  12 #include <math.h>
  13
  14 static float ABI_ATTR many(float f1, float f2, float f3, float f4, float f5, float f6, float f7, float f8, float f9, float f10, float f11, float f12, float f13)
  15 {
  16 #if 0
  17   printf("%f %f %f %f %f %f %f %f %f %f %f %f %f\n",
  18          (double) f1, (double) f2, (double) f3, (double) f4, (double) f5,
  19          (double) f6, (double) f7, (double) f8, (double) f9, (double) f10,
  20          (double) f11, (double) f12, (double) f13);
  21 #endif
  22
  23   return f1+f2+f3+f4+f5+f6+f7+f8+f9+f10+f11+f12+f13;
  24 }
  25
  26 int main (void)
  27 {
  28   ffi_cif cif;
  29   ffi_type *args[13];
  30   void *values[13];
  31   float fa[13];
  32   float f, ff;
  33   int i;
  34
  35   for (i = 0; i < 13; i++)
  36     {
  37       args[i] = &ffi_type_float;
  38       values[i] = &fa[i];
  39       fa[i] = (float) i;
  40     }
  41
  42     /* Initialize the cif */
  43     CHECK(ffi_prep_cif(&cif, ABI_NUM, 13,
  44                        &ffi_type_float, args) == FFI_OK);
  45
  46     ffi_call(&cif, FFI_FN(many), &f, values);
  47
  48     ff =  many(fa[0], fa[1],
  49                fa[2], fa[3],
  50                fa[4], fa[5],
  51                fa[6], fa[7],
  52                fa[8], fa[9],
  53                fa[10],fa[11],fa[12]);
  54
  55     if (fabs(f - ff) < FLT_EPSILON)
  56       exit(0);
  57     else
  58       abort();
  59 }