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/* Test gdb's "return" command.  */

int void_test = 0;

int main_test = 0;

char      char_returnval      = '1';

short     short_returnval     = 1;

int       int_returnval       = 1;

long      long_returnval      = 1;

long long long_long_returnval = 1;

float     float_returnval     = 1;

double    double_returnval    = 1;

union {

  char      char_testval;

  short     short_testval;

  int       int_testval;

  long      long_testval;

  long long long_long_testval;

  float     float_testval;

  double    double_testval;

  char      ffff[80];

} testval;

void void_func ()

{

  void_test = 1;

}

char char_func ()

{

  return char_returnval;

}

short short_func ()

{

  return short_returnval;

}

int int_func ()

{

  return int_returnval;

}

long long_func ()

{

  return long_returnval;

}

long long long_long_func ()

{

  return long_long_returnval;

}

float float_func ()

{

  return float_returnval;

}

double double_func ()

{

  return double_returnval;

}

int main (int argc, char **argv)

{

  char char_resultval;

  short short_resultval;

  int int_resultval;

  long long_resultval;

  long long long_long_resultval;

  float float_resultval;

  double double_resultval;

  int i;

  /* A "test load" that will insure that the function really returns

     a ${type} (as opposed to just a truncated or part of a ${type}).  */

  for (i = 0; i < sizeof (testval.ffff); i++)

    testval.ffff[i] = 0xff;

  void_func ();                                 /* call to void_func */

  char_resultval      = char_func ();           /* void_checkpoint */

  short_resultval     = short_func ();          /* char_checkpoint */

  int_resultval       = int_func ();            /* short_checkpoint */

  long_resultval      = long_func ();           /* int_checkpoint */

  long_long_resultval = long_long_func ();      /* long_checkpoint */

  /* On machines using IEEE floating point, the test pattern of all

     1-bits established above turns out to be a floating-point NaN

     ("Not a Number").  According to the IEEE rules, NaN's aren't even

     equal to themselves.  This can lead to stupid conversations with

     GDB like:

       (gdb) p testval.float_testval == testval.float_testval

       $7 = 0

       (gdb)

     This is the correct answer, but it's not the sort of thing

     return2.exp wants to see.  So to make things work the way they

     ought, we'll set aside the `union' cleverness and initialize the

     test values explicitly here.  These values have interesting bits

     throughout the value, so we'll still detect truncated values.  */

  testval.float_testval = 2.7182818284590452354;/* long_long_checkpoint */

  float_resultval     = float_func ();

  testval.double_testval = 3.14159265358979323846; /* float_checkpoint */

  double_resultval    = double_func ();

  main_test = 1;                                /* double_checkpoint */

  return 0;

}