tests/test-signal-h.c

   1 /* Test of <signal.h> substitute.
   2    Copyright (C) 2009-2020 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Eric Blake <ebb9@byu.net>, 2009.  */
  18
  19 #include <config.h>
  20
  21 #include <signal.h>
  22
  23 /* Check for required types.  */
  24 struct
  25 {
  26   size_t a;
  27   uid_t b;
  28   volatile sig_atomic_t c;
  29   sigset_t d;
  30   pid_t e;
  31 #if 0
  32   /* Not guaranteed by gnulib.  */
  33   pthread_t f;
  34   struct timespec g;
  35 #endif
  36 } s;
  37
  38 /* Check that NSIG is defined.  */
  39 int nsig = NSIG;
  40
  41 int
  42 main (void)
  43 {
  44   switch (0)
  45     {
  46       /* The following are guaranteed by C.  */
  47     case 0:
  48     case SIGABRT:
  49     case SIGFPE:
  50     case SIGILL:
  51     case SIGINT:
  52     case SIGSEGV:
  53     case SIGTERM:
  54       /* The following is guaranteed by gnulib.  */
  55 #if GNULIB_SIGPIPE || defined SIGPIPE
  56     case SIGPIPE:
  57 #endif
  58       /* Ensure no conflict with other standardized names.  */
  59 #ifdef SIGALRM
  60     case SIGALRM:
  61 #endif
  62       /* On Haiku, SIGBUS is mistakenly equal to SIGSEGV.  */
  63 #if defined SIGBUS && SIGBUS != SIGSEGV
  64     case SIGBUS:
  65 #endif
  66 #ifdef SIGCHLD
  67     case SIGCHLD:
  68 #endif
  69 #ifdef SIGCONT
  70     case SIGCONT:
  71 #endif
  72 #ifdef SIGHUP
  73     case SIGHUP:
  74 #endif
  75 #ifdef SIGKILL
  76     case SIGKILL:
  77 #endif
  78 #ifdef SIGQUIT
  79     case SIGQUIT:
  80 #endif
  81 #ifdef SIGSTOP
  82     case SIGSTOP:
  83 #endif
  84 #ifdef SIGTSTP
  85     case SIGTSTP:
  86 #endif
  87 #ifdef SIGTTIN
  88     case SIGTTIN:
  89 #endif
  90 #ifdef SIGTTOU
  91     case SIGTTOU:
  92 #endif
  93 #ifdef SIGUSR1
  94     case SIGUSR1:
  95 #endif
  96 #ifdef SIGUSR2
  97     case SIGUSR2:
  98 #endif
  99 #ifdef SIGSYS
 100     case SIGSYS:
 101 #endif
 102 #ifdef SIGTRAP
 103     case SIGTRAP:
 104 #endif
 105 #ifdef SIGURG
 106     case SIGURG:
 107 #endif
 108 #ifdef SIGVTALRM
 109     case SIGVTALRM:
 110 #endif
 111 #ifdef SIGXCPU
 112     case SIGXCPU:
 113 #endif
 114 #ifdef SIGXFSZ
 115     case SIGXFSZ:
 116 #endif
 117       /* SIGRTMIN and SIGRTMAX need not be compile-time constants.  */
 118 #if 0
 119 # ifdef SIGRTMIN
 120     case SIGRTMIN:
 121 # endif
 122 # ifdef SIGRTMAX
 123     case SIGRTMAX:
 124 # endif
 125 #endif
 126       ;
 127     }
 128   return s.a + s.b + s.c + s.e;
 129 }