GNU bug report logs - #32044
CC Mode 5.33.1 (C++//l); function-try-block handling suboptimal

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Package: cc-mode; Reported by: Michael Welsh Duggan <mwd@HIDDEN>; dated Mon, 2 Jul 2018 23:33:02 UTC; Maintainer for cc-mode is bug-cc-mode@HIDDEN.

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From: Michael Welsh Duggan <mwd@HIDDEN>
To: submit <at> debbugs.gnu.org
Subject: CC Mode 5.33.1 (C++//l); function-try-block handling suboptimal
X-Debbugs-Package: cc-mode
Date: Mon, 02 Jul 2018 19:32:19 -0400
Message-ID: <87k1qduscc.fsf@HIDDEN>
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--=-=-=
Content-Type: text/plain

Handling (indentation) of the function-try-block in C++ is sub-optimal.
I have included a simple example.  See
<URL:https://en.cppreference.com/w/cpp/language/function-try-block> for
more information about function-try-block.


--=-=-=
Content-Type: text/x-c\+\+
Content-Disposition: inline

struct Foo
{
  int x;
  Foo()
    : x(0)                      // member-init-intro (correct)
  {                             // inclass, inline-open
  }                             // inline-close
};

struct Bar
{
  int x;
  Bar() try
    : x(0)                      // substatement (incorrect)
      {                         // substatement-open (incorrect, maybe?)
      }                         // incline-close
  catch (...)
  {
  }
};

// Reasonable indentation
int foo() try {
} catch (...) {
}

// Bad indentation
int bar()
  try {
  } catch (...) {
  }


--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable



Emacs  : GNU Emacs 27.0.50 (build 4, x86_64-pc-linux-gnu, X toolkit)
 of 2018-06-24
Package: CC Mode 5.33.1 (C++//l)
Buffer Style: Pharos
c-emacs-features: (pps-extended-state col-0-paren posix-char-classes gen-st=
ring-delim gen-comment-delim syntax-properties 1-bit)

current state:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
(setq
 c-basic-offset 2
 c-comment-only-line-offset 0
 c-indent-comment-alist '((anchored-comment column . 0) (end-block space . =
1)
                          (cpp-end-block space . 2))
 c-indent-comments-syntactically-p nil
 c-block-comment-prefix ""
 c-comment-prefix-regexp '((pike-mode . "//+!?\\|\\**") (awk-mode . "#+")
                           (other . "//+\\|\\**"))
 c-doc-comment-style '((java-mode . javadoc) (pike-mode . autodoc)
                       (c-mode . gtkdoc))
 c-cleanup-list '(scope-operator)
 c-hanging-braces-alist '((brace-list-open) (brace-entry-open)
                          (statement-cont) (substatement-open after)
                          (block-close . c-snug-do-while)
                          (extern-lang-open after) (namespace-open after)
                          (module-open after) (composition-open after)
                          (inexpr-class-open after)
                          (inexpr-class-close before) (arglist-cont-nonempt=
y))
 c-hanging-colons-alist nil
 c-hanging-semi&comma-criteria '(c-semi&comma-inside-parenlist)
 c-backslash-column 48
 c-backslash-max-column 72
 c-special-indent-hook nil
 c-label-minimum-indentation 1
 c-offsets-alist '((inexpr-class . +)
                   (inexpr-statement . +)
                   (lambda-intro-cont . +)
                   (inlambda . 0)
                   (template-args-cont c-lineup-template-args +)
                   (incomposition . +)
                   (inmodule . +)
                   (innamespace . 0)
                   (inextern-lang . 0)
                   (composition-close . 0)
                   (module-close . 0)
                   (namespace-close . 0)
                   (extern-lang-close . 0)
                   (composition-open . 0)
                   (module-open . 0)
                   (namespace-open . 0)
                   (extern-lang-open . 0)
                   (objc-method-call-cont
                    c-lineup-ObjC-method-call-colons
                    c-lineup-ObjC-method-call
                    +
                    )
                   (objc-method-args-cont . c-lineup-ObjC-method-args)
                   (objc-method-intro . [0])
                   (friend . 0)
                   (cpp-define-intro c-lineup-cpp-define +)
                   (cpp-macro-cont . +)
                   (cpp-macro . [0])
                   (inclass . +)
                   (stream-op . c-lineup-streamop)
                   (arglist-cont-nonempty
                    c-lineup-gcc-asm-reg
                    c-lineup-arglist
                    )
                   (arglist-cont c-lineup-gcc-asm-reg 0)
                   (comment-intro
                    c-lineup-knr-region-comment
                    c-lineup-comment
                    )
                   (catch-clause . 0)
                   (else-clause . 0)
                   (do-while-closure . 0)
                   (access-label . /)
                   (case-label . *)
                   (substatement . +)
                   (statement-case-intro . *)
                   (statement . 0)
                   (brace-entry-open . 0)
                   (brace-list-entry . c-lineup-under-anchor)
                   (brace-list-close . 0)
                   (block-close . 0)
                   (block-open . 0)
                   (inher-cont . c-lineup-multi-inher)
                   (inher-intro . +)
                   (member-init-cont . c-lineup-multi-inher)
                   (member-init-intro . +)
                   (annotation-var-cont . +)
                   (annotation-top-cont . 0)
                   (topmost-intro . 0)
                   (knr-argdecl . 0)
                   (func-decl-cont . +)
                   (inline-close . 0)
                   (class-close . 0)
                   (class-open . 0)
                   (defun-block-intro . +)
                   (defun-close . 0)
                   (defun-open . 0)
                   (c . c-lineup-C-comments)
                   (string . c-lineup-dont-change)
                   (topmost-intro-cont . c-lineup-topmost-intro-cont)
                   (brace-list-intro . +)
                   (brace-list-open . 0)
                   (inline-open . 0)
                   (arglist-close . +)
                   (arglist-intro . +)
                   (statement-cont . c-lineup-math)
                   (statement-case-open . *)
                   (label . *)
                   (substatement-label . 2)
                   (substatement-open . 0)
                   (knr-argdecl-intro . +)
                   (statement-block-intro . +)
                   )
 c-buffer-is-cc-mode 'c++-mode
 c-tab-always-indent t
 c-syntactic-indentation t
 c-syntactic-indentation-in-macros t
 c-ignore-auto-fill '(string cpp code)
 c-auto-align-backslashes t
 c-backspace-function 'backward-delete-char-untabify
 c-delete-function 'delete-char
 c-electric-pound-behavior nil
 c-default-style '((java-mode . "java") (awk-mode . "awk") (other . "gnu"))
 c-enable-xemacs-performance-kludge-p nil
 c-old-style-variable-behavior nil
 defun-prompt-regexp nil
 tab-width 8
 comment-column 32
 parse-sexp-ignore-comments t
 parse-sexp-lookup-properties t
 auto-fill-function nil
 comment-multi-line t
 comment-start-skip "\\(//+\\|/\\*+\\)\\s *"
 fill-prefix nil
 fill-column 70
 paragraph-start "[ 	]*\\(//+\\|\\**\\)[ 	]*$\\|^\f"
 adaptive-fill-mode t
 adaptive-fill-regexp "[ 	]*\\(//+\\|\\**\\)[ 	]*\\([ 	]*\\([-=E2=80=93!|#%=
;>*=C2=B7=E2=80=A2=E2=80=A3=E2=81=83=E2=97=A6]+[ 	]*\\)*\\)"
 )
--=20
Michael Welsh Duggan
(md5i@HIDDEN)

--=-=-=--




Acknowledgement sent to Michael Welsh Duggan <mwd@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-cc-mode@HIDDEN. Full text available.
Report forwarded to bug-cc-mode@HIDDEN:
bug#32044; Package cc-mode. Full text available.
Please note: This is a static page, with minimal formatting, updated once a day.
Click here to see this page with the latest information and nicer formatting.
Last modified: Mon, 25 Nov 2019 12:00:02 UTC

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