math/test-tgmath-ret.c

   1 /* Test compilation of tgmath macros.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Andreas Jaeger <aj@suse.de>, 2003.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <math.h>
  22 #include <complex.h>
  23 #include <tgmath.h>
  24 #include <stdio.h>
  25
  26 static float fx;
  27 static double dx;
  28 static long double lx;
  29 static int errors = 0;
  30
  31 static void
  32 our_error (const char *c)
  33 {
  34   puts (c);
  35   ++errors;
  36 }
  37
  38 /* First function where the return type is constant.  */
  39
  40 #define CHECK_RET_CONST_TYPE(func, rettype, arg, name) \
  41   if (sizeof (func (arg)) != sizeof (rettype))                                \
  42     our_error ("Return size of " #func " is wrong with " #name " argument");
  43
  44 #define CHECK_RET_CONST_FLOAT(func, rettype) \
  45   CHECK_RET_CONST_TYPE (func, rettype, fx, float)
  46 #define CHECK_RET_CONST_DOUBLE(func, rettype) \
  47   CHECK_RET_CONST_TYPE (func, rettype, dx, double)
  48 #ifdef NO_LONG_DOUBLE
  49 # define CHECK_RET_CONST_LDOUBLE(func, rettype)
  50 #else
  51 # define CHECK_RET_CONST_LDOUBLE(func, rettype) \
  52   CHECK_RET_CONST_TYPE (func, rettype, lx, long double)
  53 #endif
  54
  55 #define CHECK_RET_CONST(func, rettype) \
  56 static void                                                                   \
  57 check_return_ ##func (void)                                                   \
  58 {                                                                             \
  59   CHECK_RET_CONST_FLOAT (func, rettype)                                       \
  60   CHECK_RET_CONST_DOUBLE (func, rettype)                                      \
  61   CHECK_RET_CONST_LDOUBLE (func, rettype)                                     \
  62 }
  63
  64 CHECK_RET_CONST(ilogb, int)
  65 CHECK_RET_CONST(lrint, long)
  66 CHECK_RET_CONST(lround, long)
  67 CHECK_RET_CONST(llrint, long long)
  68 CHECK_RET_CONST(llround, long long)
  69
  70 static int
  71 do_test (void)
  72 {
  73   check_return_ilogb ();
  74   check_return_lrint ();
  75   check_return_lround ();
  76   check_return_llrint ();
  77   check_return_llround ();
  78
  79   printf ("%Zd\n", sizeof(carg (lx)));
  80
  81   return errors != 0;
  82 }
  83
  84 #define TEST_FUNCTION do_test ()
  85 #include "../test-skeleton.c"