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Top Forums Programming -Warray-bounds option to GCC compiler Post 303013012 by milhan on Tuesday 13th of February 2018 05:13:27 PM
Old 02-13-2018
-Warray-bounds option to GCC compiler

What exactly is the -Warray-bounds option to the GCC compiler supposed to warn about?
the man page states:
Quote:
-Warray-bounds
-Warray-bounds=n
This option is only active when -ftree-vrp is active (default for -O2 and above). It warns
about subscripts to arrays that are always out of bounds. This warning is enabled by -Wall.

-Warray-bounds=1
This is the warning level of -Warray-bounds and is enabled by -Wall; higher levels are
not, and must be explicitly requested.

-Warray-bounds=2
This warning level also warns about out of bounds access for arrays at the end of a
struct and for arrays accessed through pointers. This warning level may give a larger
number of false positives and is deactivated by default.
Code:
~ g++ --version
g++ (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
Copyright (C) 2017 Free Software Foundation, Inc.

Thank you.
 

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List(3pm)						  LogReport's Lire Documentation						 List(3pm)

NAME
Lire::Config::List - List Value Object. DESCRIPTION
Used for configuration parameters which contains a list of values. elements() Returns this list's values as an array of Lire::Config::Value object. get( $idx ) Returns the value stored at index $idx of this list. An exception is thrown if the index is out-of-bounds. remove( $idx ) Removes the value stored at index $idx of this list. An exception is thrown if the index is out-of-bounds. It returns the deleted element. clear() Removes all elements from this list append( $val, [ $idx ] ) Adds $val to after element $idx. If $idx is omitted, the element will be added at the end of the array. A negative index is interpreted relative to the end of the array. move( $idx, $new_idx ) Moves element $idx at position $new_idx. Indices can be negative and are interpreted as position relative to the end of the array. set( $idx, $value ) Replaces value at index $idx with $value. AUTHOR
Wessel Dankers <wsl@logreport.org> VERSION
$Id: List.pm,v 1.16 2006/07/23 13:16:30 vanbaal Exp $ COPYRIGHT
Copyright (C) 2002-2004 Stichting LogReport Foundation LogReport@LogReport.org This file is part of Lire. Lire is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html. Lire 2.1.1 2006-07-23 List(3pm)
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