Update and correct documentation of -Wall and -Wrestrict.

gcc/ChangeLog:
	* doc/extend.texi (-Wall): Mention -Wformat-overflow and
	-Wformat-truncation.  Move -Wzero-length-bounds last.
	(-Wrestrict): Document positive form of option enabled by -Wall.

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4b847edded03b1ea0041bf2b4a7a10972b09993b..726e629188a0a6b1adba30071988e701f0458e12 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2020-04-13  Martin Sebor  <msebor@redhat.com>
+
+       * doc/extend.texi (-Wall): Mention -Wformat-overflow and
+       -Wformat-truncation.  Move -Wzero-length-bounds last.
+       (-Wrestrict): Document positive form of option enabled by -Wall.
+
 2020-04-13 Zachary Spytz  <zspytz@gmail.com>
 
        * doc/extend.texi: Add realloc to list of built-in functions

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index be7b5bb7d718fd8113b7a04794b6aa0054a8be80..3bb95ffd2207200dfcd822edddb4170d5c36476b 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -4835,12 +4835,13 @@ Options} and @ref{Objective-C and Objective-C++ Dialect Options}.
 -Wenum-compare @r{(in C/ObjC; this is on by default in C++)} @gol
 -Wenum-conversion @r{in C/ObjC;} @gol
 -Wformat   @gol
+-Wformat-overflow  @gol
+-Wformat-truncation  @gol
 -Wint-in-bool-context  @gol
 -Wimplicit @r{(C and Objective-C only)} @gol
 -Wimplicit-int @r{(C and Objective-C only)} @gol
 -Wimplicit-function-declaration @r{(C and Objective-C only)} @gol
 -Winit-self @r{(only for C++)} @gol
--Wzero-length-bounds @gol
 -Wlogical-not-parentheses @gol
 -Wmain @r{(only for C/ObjC and unless} @option{-ffreestanding}@r{)}  @gol
 -Wmaybe-uninitialized @gol
@@ -4875,7 +4876,8 @@ Options} and @ref{Objective-C and Objective-C++ Dialect Options}.
 -Wunused-label     @gol
 -Wunused-value     @gol
 -Wunused-variable  @gol
--Wvolatile-register-var}
+-Wvolatile-register-var  @gol
+-Wzero-length-bounds}
 
 Note that some warning flags are not implied by @option{-Wall}.  Some of
 them warn about constructions that users generally do not consider
@@ -8004,7 +8006,7 @@ reduce the padding and so make the structure smaller.
 Warn if anything is declared more than once in the same scope, even in
 cases where multiple declaration is valid and changes nothing.
 
-@item -Wno-restrict
+@item -Wrestrict
 @opindex Wrestrict
 @opindex Wno-restrict
 Warn when an object referenced by a @code{restrict}-qualified parameter