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errno.c revision 1.1.1.1 
      1 /* This testcase is part of GDB, the GNU debugger.
      2 
      3    Copyright 2024 Free Software Foundation, Inc.
      4 
      5    This program is free software; you can redistribute it and/or modify
      6    it under the terms of the GNU General Public License as published by
      7    the Free Software Foundation; either version 3 of the License, or
      8    (at your option) any later version.
      9 
     10    This program is distributed in the hope that it will be useful,
     11    but WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13    GNU General Public License for more details.
     14 
     15    You should have received a copy of the GNU General Public License
     16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     17 
     18 #include <errno.h>
     19 
     20 static void shadow_errno ();
     21 
     22 int main ()
     23 {
     24   errno = 42;
     25 
     26   shadow_errno ();	/* main-breakpoint */
     27   return 0;
     28 }
     29 
     30 #undef errno
     31 static void
     32 shadow_errno ()
     33 {
     34   int errno = 36;
     35 
     36   return;		/* shadow_errno-breakpoint */
     37 }
     38