math/test-tgmath-ret.c

   1 /* Test compilation of tgmath macros.
   2    Copyright (C) 2003-2015 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, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <math.h>
  21 #include <complex.h>
  22 #include <tgmath.h>
  23 #include <stdio.h>
  24
  25 static float fx;
  26 static double dx;
  27 static long double lx;
  28 static int errors = 0;
  29
  30 static void
  31 our_error (const char *c)
  32 {
  33   puts (c);
  34   ++errors;
  35 }
  36
  37 /* First function where the return type is constant.  */
  38
  39 #define CHECK_RET_CONST_TYPE(func, rettype, arg, name) \
  40   if (sizeof (func (arg)) != sizeof (rettype))                                \
  41     our_error ("Return size of " #func " is wrong with " #name " argument");
  42
  43 #define CHECK_RET_CONST_FLOAT(func, rettype) \
  44   CHECK_RET_CONST_TYPE (func, rettype, fx, float)
  45 #define CHECK_RET_CONST_DOUBLE(func, rettype) \
  46   CHECK_RET_CONST_TYPE (func, rettype, dx, double)
  47 #ifdef NO_LONG_DOUBLE
  48 # define CHECK_RET_CONST_LDOUBLE(func, rettype)
  49 #else
  50 # define CHECK_RET_CONST_LDOUBLE(func, rettype) \
  51   CHECK_RET_CONST_TYPE (func, rettype, lx, long double)
  52 #endif
  53
  54 #define CHECK_RET_CONST(func, rettype) \
  55 static void                                                                   \
  56 check_return_ ##func (void)                                                   \
  57 {                                                                             \
  58   CHECK_RET_CONST_FLOAT (func, rettype)                                       \
  59   CHECK_RET_CONST_DOUBLE (func, rettype)                                      \
  60   CHECK_RET_CONST_LDOUBLE (func, rettype)                                     \
  61 }
  62
  63 CHECK_RET_CONST(ilogb, int)
  64 CHECK_RET_CONST(lrint, long)
  65 CHECK_RET_CONST(lround, long)
  66 CHECK_RET_CONST(llrint, long long)
  67 CHECK_RET_CONST(llround, long long)
  68
  69 static int
  70 do_test (void)
  71 {
  72   check_return_ilogb ();
  73   check_return_lrint ();
  74   check_return_lround ();
  75   check_return_llrint ();
  76   check_return_llround ();
  77
  78   printf ("%Zd\n", sizeof(carg (lx)));
  79
  80   return errors != 0;
  81 }
  82
  83 #define TEST_FUNCTION do_test ()
  84 #include "../test-skeleton.c"