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.
This commit is contained in:
Martin Sebor 2020-04-13 16:31:09 -06:00
parent 09f0413902
commit d28e5b145f
2 changed files with 11 additions and 3 deletions

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@ -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

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@ -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