gcc/testsuite/c-c++-common/analyzer/pr93355-localealias-simplified.c

   1 /* Simplified version of test for ensuring we issue a FILE * leak diagnostic,
   2    made trivial.
   3    Adapted from intl/localealias.c, with all #includes removed.  */
   4
   5 /* { dg-do "compile" } */
   6
   7 /* Handle aliases for locale names.
   8    Copyright (C) 1995-1999, 2000-2001, 2003 Free Software Foundation, Inc.
   9
  10    This program is free software; you can redistribute it and/or modify it
  11    under the terms of the GNU Library General Public License as published
  12    by the Free Software Foundation; either version 2, or (at your option)
  13    any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    Library General Public License for more details.
  19
  20    You should have received a copy of the GNU Library General Public
  21    License along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
  23    USA.  */
  24
  25 /* Minimal version of system headers.  */
  26 #define NULL ((void *) 0)
  27 typedef struct _IO_FILE FILE;
  28 extern FILE *fopen(const char *__restrict __filename,
  29                    const char *__restrict __modes);
  30 extern int fclose(FILE *__stream);
  31
  32 void
  33 read_alias_file (int flag)
  34 {
  35   FILE *fp;
  36
  37   fp = fopen ("name", "r"); /* { dg-message "opened here" } */
  38   if (fp == NULL)
  39     return;
  40
  41   if (flag)
  42     return; /* { dg-warning "leak of FILE 'fp'" } */
  43
  44   fclose (fp);
  45 }