re PR other/7549 (gcc3.1: Documentation glitches in info-files)
PR other/7549 * doc/invoke.texi: Mention for each option included in -Wall that it is included in -Wall. * doc/gcc.texi: Update copyright and last modification date. From-SVN: r94682
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Joseph Myers
Joseph Myers
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@ -1,3 +1,10 @@
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2005-02-06 Joseph S. Myers <joseph@codesourcery.com>
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PR other/7549
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* doc/invoke.texi: Mention for each option included in -Wall that
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it is included in -Wall.
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* doc/gcc.texi: Update copyright and last modification date.
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2005-02-06 Zdenek Dvorak <dvorakz@suse.cz>
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* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Do not add
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@ -41,7 +41,7 @@
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@copying
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Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
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1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.2 or
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@ -79,7 +79,7 @@ This file documents the use of the GNU compilers.
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@sp 2
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@center by Richard M. Stallman and the GCC Developer Community
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@sp 3
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@center Last updated 23 May 2004
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@center Last updated 6 February 2005
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@sp 1
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@center for GCC @value{version-GCC}
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@ -2166,11 +2166,13 @@ Inhibit warning messages about the use of @samp{#import}.
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Warn if an array subscript has type @code{char}. This is a common cause
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of error, as programmers often forget that this type is signed on some
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machines.
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This warning is enabled by @option{-Wall}.
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@item -Wcomment
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@opindex Wcomment
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Warn whenever a comment-start sequence @samp{/*} appears in a @samp{/*}
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comment, or whenever a Backslash-Newline appears in a @samp{//} comment.
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This warning is enabled by @option{-Wall}.
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@item -Wfatal-errors
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@opindex Wfatal-errors
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@ -2291,6 +2293,7 @@ int f()
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@item -Wimplicit-int
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@opindex Wimplicit-int
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Warn when a declaration does not specify a type.
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This warning is enabled by @option{-Wall}.
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@item -Wimplicit-function-declaration
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@itemx -Werror-implicit-function-declaration
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@ -2299,16 +2302,19 @@ Warn when a declaration does not specify a type.
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Give a warning (or error) whenever a function is used before being
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declared. The form @option{-Wno-error-implicit-function-declaration}
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is not supported.
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This warning is enabled by @option{-Wall} (as a warning, not an error).
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@item -Wimplicit
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@opindex Wimplicit
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Same as @option{-Wimplicit-int} and @option{-Wimplicit-function-declaration}.
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This warning is enabled by @option{-Wall}.
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@item -Wmain
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@opindex Wmain
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Warn if the type of @samp{main} is suspicious. @samp{main} should be a
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function with external linkage, returning int, taking either zero
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arguments, two, or three arguments of appropriate types.
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This warning is enabled by @option{-Wall}.
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@item -Wmissing-braces
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@opindex Wmissing-braces
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@ -2321,6 +2327,8 @@ int a[2][2] = @{ 0, 1, 2, 3 @};
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int b[2][2] = @{ @{ 0, 1 @}, @{ 2, 3 @} @};
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@end smallexample
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This warning is enabled by @option{-Wall}.
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@item -Wmissing-include-dirs @r{(C, C++, Objective-C and Objective-C++ only)}
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@opindex Wmissing-include-dirs
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Warn if a user-supplied include directory does not exist.
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@ -2377,6 +2385,8 @@ the enclosing @code{if}. The resulting code would look like this:
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@end group
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@end smallexample
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This warning is enabled by @option{-Wall}.
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@item -Wsequence-point
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@opindex Wsequence-point
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Warn about code that may have undefined semantics because of violations
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@ -2423,6 +2433,8 @@ Links to discussions of the problem, including proposed formal
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definitions, may be found on the GCC readings page, at
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@w{@uref{http://gcc.gnu.org/readings.html}}.
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This warning is enabled by @option{-Wall}.
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@item -Wreturn-type
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@opindex Wreturn-type
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Warn whenever a function is defined with a return-type that defaults to
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@ -2439,6 +2451,8 @@ For C++, a function without return type always produces a diagnostic
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message, even when @option{-Wno-return-type} is specified. The only
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exceptions are @samp{main} and functions defined in system headers.
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This warning is enabled by @option{-Wall}.
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@item -Wswitch
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@opindex Wswitch
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Warn whenever a @code{switch} statement has an index of enumerated type
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@ -2446,6 +2460,7 @@ and lacks a @code{case} for one or more of the named codes of that
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enumeration. (The presence of a @code{default} label prevents this
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warning.) @code{case} labels outside the enumeration range also
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provoke warnings when this option is used.
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This warning is enabled by @option{-Wall}.
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@item -Wswitch-default
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@opindex Wswitch-switch
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@ -2463,15 +2478,18 @@ provoke warnings when this option is used.
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@opindex Wtrigraphs
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Warn if any trigraphs are encountered that might change the meaning of
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the program (trigraphs within comments are not warned about).
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This warning is enabled by @option{-Wall}.
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@item -Wunused-function
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@opindex Wunused-function
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Warn whenever a static function is declared but not defined or a
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non\-inline static function is unused.
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This warning is enabled by @option{-Wall}.
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@item -Wunused-label
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@opindex Wunused-label
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Warn whenever a label is declared but not used.
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This warning is enabled by @option{-Wall}.
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To suppress this warning use the @samp{unused} attribute
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(@pxref{Variable Attributes}).
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@ -2487,6 +2505,7 @@ To suppress this warning use the @samp{unused} attribute
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@opindex Wunused-variable
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Warn whenever a local variable or non-constant static variable is unused
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aside from its declaration
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This warning is enabled by @option{-Wall}.
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To suppress this warning use the @samp{unused} attribute
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(@pxref{Variable Attributes}).
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@ -2494,6 +2513,7 @@ To suppress this warning use the @samp{unused} attribute
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@item -Wunused-value
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@opindex Wunused-value
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Warn whenever a statement computes a result that is explicitly not used.
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This warning is enabled by @option{-Wall}.
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To suppress this warning cast the expression to @samp{void}.
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@ -2583,6 +2603,8 @@ Some spurious warnings can be avoided if you declare all the functions
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you use that never return as @code{noreturn}. @xref{Function
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Attributes}.
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This warning is enabled by @option{-Wall}.
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@item -Wunknown-pragmas
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@opindex Wunknown-pragmas
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@cindex warning for unknown pragmas
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