gcc/testsuite/c-c++-common/dfp/func-vararg-mixed-2.c

   1 /* { dg-do run { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   2 /* { dg-options "-mpreferred-stack-boundary=2" } */
   3
   4 /* C99 6.5.2.2 Function calls.
   5    Test passing varargs of the combination of decimal float types and
   6    other types.  */
   7
   8 #include <stdarg.h>
   9 #include "dfp-dbg.h"
  10
  11 /* Supposing the list of varying number of arguments is:
  12    unsigned int, _Decimal128, double, _Decimal32, _Decimal64.  */
  13
  14 static _Decimal32
  15 vararg_d32 (unsigned arg, ...)
  16 {
  17   va_list ap;
  18   _Decimal32 result;
  19
  20   va_start (ap, arg);
  21
  22   va_arg (ap, unsigned int);
  23   va_arg (ap, _Decimal128);
  24   va_arg (ap, double);
  25   result = va_arg (ap, _Decimal32);
  26
  27   va_end (ap);
  28   return result;
  29 }
  30
  31 static _Decimal32
  32 vararg_d64 (unsigned arg, ...)
  33 {
  34   va_list ap;
  35   _Decimal64 result;
  36
  37   va_start (ap, arg);
  38
  39   va_arg (ap, unsigned int);
  40   va_arg (ap, _Decimal128);
  41   va_arg (ap, double);
  42   va_arg (ap, _Decimal32);
  43   result = va_arg (ap, _Decimal64);
  44
  45   va_end (ap);
  46   return result;
  47 }
  48
  49 static _Decimal128
  50 vararg_d128 (unsigned arg, ...)
  51 {
  52   va_list ap;
  53   _Decimal128 result;
  54
  55   va_start (ap, arg);
  56
  57   va_arg (ap, unsigned int);
  58   result = va_arg (ap, _Decimal128);
  59
  60   va_end (ap);
  61   return result;
  62 }
  63
  64 static unsigned int
  65 vararg_int (unsigned arg, ...)
  66 {
  67   va_list ap;
  68   unsigned int result;
  69
  70   va_start (ap, arg);
  71
  72   result = va_arg (ap, unsigned int);
  73
  74   va_end (ap);
  75   return result;
  76 }
  77
  78 static double
  79 vararg_double (unsigned arg, ...)
  80 {
  81   va_list ap;
  82   float result;
  83
  84   va_start (ap, arg);
  85
  86   va_arg (ap, unsigned int);
  87   va_arg (ap, _Decimal128);
  88   result = va_arg (ap, double);
  89
  90   va_end (ap);
  91   return result;
  92 }
  93
  94
  95 int
  96 main ()
  97 {
  98   if (vararg_d32 (3, 0, 1.0dl, 2.0, 3.0df, 4.0dd) != 3.0df) FAILURE
  99   if (vararg_d64 (4, 0, 1.0dl, 2.0, 3.0df, 4.0dd) != 4.0dd) FAILURE
 100   if (vararg_d128 (1, 0, 1.0dl, 2.0, 3.0df, 4.0dd) != 1.0dl) FAILURE
 101   if (vararg_int (0, 0, 1.0dl, 2.0, 3.0df, 4.0dd) != 0) FAILURE
 102   if (vararg_double (2, 0, 1.0dl, 2.0, 3.0df, 4.0dd) != 2.0) FAILURE
 103
 104   FINISH
 105 }