LCOV - code coverage report
Current view: top level - glib/glib/tests - macros.c (source / functions) Hit Total Coverage
Test: unnamed Lines: 28 30 93.3 %
Date: 2024-03-26 05:16:46 Functions: 5 5 100.0 %
Branches: 12 18 66.7 %

           Branch data     Line data    Source code
       1                 :            : /* GLib testing framework examples and tests
       2                 :            :  *
       3                 :            :  * Copyright © 2018 Endless Mobile, Inc.
       4                 :            :  *
       5                 :            :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :            :  *
       7                 :            :  * This library is free software; you can redistribute it and/or
       8                 :            :  * modify it under the terms of the GNU Lesser General Public
       9                 :            :  * License as published by the Free Software Foundation; either
      10                 :            :  * version 2.1 of the License, or (at your option) any later version.
      11                 :            :  *
      12                 :            :  * This library is distributed in the hope that it will be useful,
      13                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :            :  * Lesser General Public License for more details.
      16                 :            :  *
      17                 :            :  * You should have received a copy of the GNU Lesser General
      18                 :            :  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19                 :            :  *
      20                 :            :  * Author: Philip Withnall <withnall@endlessm.com>
      21                 :            :  */
      22                 :            : 
      23                 :            : #include <glib.h>
      24                 :            : 
      25                 :            : #ifdef G_CXX_STD_VERSION
      26                 :            : #error G_CXX_STD_VERSION should be undefined in C programs
      27                 :            : #endif
      28                 :            : 
      29                 :            : G_STATIC_ASSERT (!G_CXX_STD_CHECK_VERSION (98));
      30                 :            : G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (89));
      31                 :            : G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (90));
      32                 :            : 
      33                 :            : #if G_C_STD_VERSION >= 199000L
      34                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (89));
      35                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (90));
      36                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (199000L));
      37                 :            : #endif
      38                 :            : 
      39                 :            : #if G_C_STD_VERSION == 198900L
      40                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (99));
      41                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (199901L));
      42                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (11));
      43                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (201112L));
      44                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (17));
      45                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (201710L));
      46                 :            : #endif
      47                 :            : 
      48                 :            : #if G_C_STD_VERSION >= 199901L
      49                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (99));
      50                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (199901L));
      51                 :            : #endif
      52                 :            : 
      53                 :            : #if G_C_STD_VERSION == 199901L
      54                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (11));
      55                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (201112L));
      56                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (17));
      57                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (201710L));
      58                 :            : #endif
      59                 :            : 
      60                 :            : #if G_C_STD_VERSION >= 201112L
      61                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (11));
      62                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (201112L));
      63                 :            : #endif
      64                 :            : 
      65                 :            : #if G_C_STD_VERSION == 201112L
      66                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (17));
      67                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (201710L));
      68                 :            : #endif
      69                 :            : 
      70                 :            : #if G_C_STD_VERSION >= 201710L
      71                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (17));
      72                 :            :   G_STATIC_ASSERT (G_C_STD_CHECK_VERSION (201710L));
      73                 :            : #endif
      74                 :            : 
      75                 :            : #if G_C_STD_VERSION == 201710L
      76                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (23));
      77                 :            :   G_STATIC_ASSERT (!G_C_STD_CHECK_VERSION (202300L));
      78                 :            : #endif
      79                 :            : 
      80                 :            : #ifdef _G_EXPECTED_C_STANDARD
      81                 :            : static void
      82                 :          4 : test_c_standard (void)
      83                 :            : {
      84                 :          4 :   guint64 std_version = 0;
      85                 :            : 
      86         [ -  + ]:          4 :   if (!g_ascii_string_to_unsigned (_G_EXPECTED_C_STANDARD, 10, 0, G_MAXUINT64,
      87                 :            :                                    &std_version, NULL))
      88                 :            :     {
      89                 :          0 :       g_test_skip ("Expected standard value is non-numeric: "
      90                 :            :                    _G_EXPECTED_C_STANDARD);
      91                 :          0 :       return;
      92                 :            :     }
      93                 :            : 
      94                 :          4 :   g_assert_true (G_C_STD_CHECK_VERSION (std_version));
      95                 :            : 
      96   [ +  +  +  + ]:          4 :   if (std_version > 80 && std_version < 99)
      97                 :          1 :     std_version = 90;
      98                 :            : 
      99         [ +  + ]:          4 :   if (std_version >= 90)
     100                 :          2 :     g_assert_cmpuint (G_C_STD_VERSION, >=, (std_version + 1900) * 100);
     101                 :            :   else
     102                 :          2 :     g_assert_cmpuint (G_C_STD_VERSION, >=, (std_version + 2000) * 100);
     103                 :            : }
     104                 :            : #endif
     105                 :            : 
     106                 :            : /* Test that G_STATIC_ASSERT_EXPR can be used as an expression */
     107                 :            : static void
     108                 :          5 : test_assert_static (void)
     109                 :            : {
     110                 :            :   G_STATIC_ASSERT (4 == 4);
     111                 :            :   if (G_STATIC_ASSERT_EXPR (1 == 1), sizeof (gchar) == 2)
     112                 :            :     g_assert_not_reached ();
     113                 :          5 : }
     114                 :            : 
     115                 :            : /* Test G_ALIGNOF() gives the same results as the G_STRUCT_OFFSET fallback. This
     116                 :            :  * should be the minimal alignment for the given type.
     117                 :            :  *
     118                 :            :  * This is necessary because the implementation of G_ALIGNOF() varies depending
     119                 :            :  * on the compiler in use. We want all implementations to be consistent.
     120                 :            :  *
     121                 :            :  * In the case that the compiler uses the G_STRUCT_OFFSET fallback, this test
     122                 :            :  * is a no-op. */
     123                 :            : static void
     124                 :          5 : test_alignof_fallback (void)
     125                 :            : {
     126                 :            : #define check_alignof(type) \
     127                 :            :   g_assert_cmpint (G_ALIGNOF (type), ==, G_STRUCT_OFFSET (struct { char a; type b; }, b))
     128                 :            : 
     129         [ -  + ]:          5 :   check_alignof (char);
     130         [ -  + ]:          5 :   check_alignof (int);
     131         [ -  + ]:          5 :   check_alignof (float);
     132         [ -  + ]:          5 :   check_alignof (double);
     133         [ -  + ]:          5 :   check_alignof (struct { char a; int b; });
     134                 :          5 : }
     135                 :            : 
     136                 :            : static void
     137                 :          5 : test_struct_sizeof_member (void)
     138                 :            : {
     139                 :            :     G_STATIC_ASSERT (G_SIZEOF_MEMBER (struct { char a; int b; }, a) == sizeof (char));
     140                 :          5 :     g_assert_cmpint (G_SIZEOF_MEMBER (struct { char a; int b; }, b), ==, sizeof (int));
     141                 :          5 : }
     142                 :            : 
     143                 :            : int
     144                 :          5 : main (int   argc,
     145                 :            :       char *argv[])
     146                 :            : {
     147                 :          5 :   g_test_init (&argc, &argv, NULL);
     148                 :            : 
     149                 :            : #ifdef _G_EXPECTED_C_STANDARD
     150                 :          4 :   g_test_add_func ("/C/standard-" _G_EXPECTED_C_STANDARD, test_c_standard);
     151                 :            : #endif
     152                 :            : 
     153                 :          5 :   g_test_add_func ("/alignof/fallback", test_alignof_fallback);
     154                 :          5 :   g_test_add_func ("/assert/static", test_assert_static);
     155                 :          5 :   g_test_add_func ("/struct/sizeof_member", test_struct_sizeof_member);
     156                 :            : 
     157                 :          5 :   return g_test_run ();
     158                 :            : }

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