Questions tagged [cc-mode]
Major mode for C, C++, Objective-C, Java, CORBA IDL, Pike, AWK. Included in GNU Emacs and XEmacs.
75
questions
0
votes
1
answer
39
views
C/C++ mode aggresive auto indent
In the C/C++ mode, on some contexts, like when pressing enter at the end of a function declaration, code is aggressively indented backwards with a style that ignores my overall configuration.
For ...
- 120
0
votes
2
answers
40
views
Unable to override c-offsets-alist in dir-locals.el
I have Emacs 27.1 on Ubuntu 22.04 and I'm trying to modify c-offsets-alist for this particular project with C and C++ source files. I have a c-style and a c-mode-common-hook in my .emacs:
(defconst my-...
- 121
1
vote
0
answers
26
views
Add preprocessor like prefix for C/C++ indentation
I want to extend the existing indentation capabilities for macro constructs which behave like preprocessor directives.
Consider the following code example:
void fkt() {
const int a = 0;
MY_MACRO(...
- 1,855
1
vote
1
answer
32
views
C++, arglist-intro indent based on the indentation of previous line?
Consider the following C/C++ code
{
auto x = f(g(h(
"aaa")));
}
The "aaa" is indented this way, because c-offset-alist has (arglist-intro . +) (I think ...
- 187
1
vote
1
answer
69
views
Previewing latex in cc-mode
I'm trying to write c/c++ code with comments in LaTeX.
My .emacs file has the single line
(require 'org)
My source c/c++ file has the single line
\[ \int x \]
If I'm in python mode, fortran mode, ...
- 111
1
vote
1
answer
64
views
How to edit an awk file in emacs 28.2 without using AWK//l mode defined in cc-mode.el
While trying to edit an awk file with emacs 28.2 its not self-inserting all charcaters, but trying to evaluate certain keystrokes! For example if I press 3 emacs sees C-u 3-! Pressing a causes it to ...
- 376
1
vote
1
answer
151
views
How to set up K&R everywhere (1TBS) brace style in cc-mode?
I'd like Emacs to follow this indentation style:
struct Foo {
void bar() {
for (int i=0; i<10; i++) {
if (condition) {
// code
// code
...
- 56
0
votes
1
answer
62
views
Calling c-electric-brace programmatically
I'm currently extending the tempo.el template insertion system to be sensitive to C styles. Specifically, I want to insert braces using c-electric-brace. How programmatically insertion of braces as ...
- 527
0
votes
0
answers
121
views
format a region of text file with cc mode
I have a textfile.txt with content like the following
*decltype with two or more arguments
decltype does not take two arguments. Simply it can have an expression as its argument, and the comma ...
0
votes
0
answers
50
views
How to show enumerator's integral value?
Is there a way to print out the integral value of enumerator?
I tried to search related questions but no good. So I suspect that this isn't a common requirement for most of people. But I do ...
- 1
1
vote
0
answers
430
views
Configuring Doom Emacs to autocomplete code within a header file
I am pretty new to Doom emacs and am so far loving it. However, I am having trouble autocompleting code when from an external include file.
I have the following code
and am having trouble ...
- 111
0
votes
0
answers
68
views
How to change a core emacs file? (specifically cc-mode.el)
I asked a question here which has not been answered yet.
I was able to pinpoint where my problem originated from in the core files. If I could just delete those lines, I reckon my problem would be ...
- 37
1
vote
1
answer
104
views
Turning off indentation for goto labels
I'm using the ellemtel style for my C code. This mode indents goto labels like this:
void f(int x)
{
if (x) {
goto LABEL0;
} else {
goto LABEL1;
}
LABEL0:
printf("x is zero\n&...
- 113
2
votes
1
answer
290
views
Java 15 Text Blocks in CC Mode?
Java SE 15 adds (finally) support for multiline string literals that start with """\n and end with """.
Has anyone updated java-mode (CC Mode) to recognize this construct?...
- 760
4
votes
1
answer
228
views
How to convert single line comments to multiline comments?
I have a bunch of single line comment blocks in C-code that I want to change to multiline. Example:
// foo
// bar
should become:
/* foo
* bar
*/
How can I do this easily in Emacs?
- 409
0
votes
0
answers
146
views
How can I disable semicolon electric behaviour without impacting the other electric chars in CC-mode?
In CC-mode when the electric behavior of characters is enabled, typing the semicolon character triggers the c-electric-semi&comma command. That inserts the semicolon, terminates the line, moves ...
- 831
2
votes
1
answer
54
views
Altering syntax highlighting for a particular expression
In c-mode, I would like all lines beginning with
exec sql
to have that expression grey and the rest of the line in the default face. How might I achieve that?
- 3,284
2
votes
1
answer
596
views
converting c-mode hooks to use-package fails in non-obvious ways
Emacs version 26.3 on a mac
I have this (simplified) c(c)-mode config:
(add-hook 'c-mode-common-hook
'(lambda ()
(c-set-style "bsd")))
which works when I visit a c file.
When I ...
2
votes
1
answer
556
views
Workaround for "Invalid search bound (wrong side of point)" in CC Mode
Emacs 24.x and 25.x have a bug in CC Mode which can result in some operations failing with the error
Invalid search bound (wrong side of point)
For example, I can reproduce it with the following ...
1
vote
0
answers
123
views
How to avoid annoying `auto-fill` behaviour in `c-mode` comment?
Recently I write quite a lot comments for c/c++ files. I use auto-fill-mode for comment auto format. But I found a quite annoying problem: whenever I input SPC at the end of a comment line, the cursor ...
- 11
0
votes
1
answer
94
views
Inline elements of variable list value in rx() macro call [duplicate]
Is there a more compact way to make use of the rx macro in cases where we want to inline a list of strings from a variable? Such as
(defconst c++20-new-keywords-list
(list
"char8_t"
"import"
...
- 527
2
votes
0
answers
101
views
Derived mode from CC Mode: how do I write one?
Where is the definitive, up-to-date guide on how to write a derived mode from CC Mode. I have a mode that's malfunctioning and thought I might just rewrite it, but information I find is spotty and ...
- 21
0
votes
0
answers
86
views
`scad-mode` (derived from CC Mode) hangs Emacs. How to debug/fix?
I have found that scad-mode.el, a derived mode from CC Mode, which can be found here:
https://github.com/openscad/openscad/blob/master/contrib/scad-mode.el
hangs emacs if I type
#(
into the window,...
- 21
1
vote
1
answer
131
views
How do I suppress indentation after labels in Groovy?
I'm writing some Groovy code, and in my unit tests I have something like the following:
def testFoo(){
given:
//setup statement 1
//setup statement 2
//...
when:
//Execute ...
- 202
0
votes
1
answer
458
views
How to set tabulator size in the awk mode?
After installing a new kubuntu (16.04) and emacs (25.2.2) I have had indentation problems. It seems like indentation default values have changed or maybe I am missing some configuration file? ...
- 3
1
vote
1
answer
565
views
Customizing indentation style for continuation lines?
I would like to customize the "k&r" indentation style, so that continuation lines are indented 8 spaces, like this:
if (first
&& second) { // <- 8 spaces.
third();
}
--
...
- 1,468
1
vote
0
answers
70
views
Enable `cc-mode` documentation highlightning per minor mode
I am writing a minor mode for enabling support for JML within Java files.
I realized the syntax highlighting with cc-mode's support for documentation comments.
It works if I set c-doc-comment-style ...
- 11
3
votes
1
answer
213
views
How to re-enable syntax highlighting of code that have been disabled by #if preprocessor statements
Code between #if SYMBOL and #endif is greyed out in cc-mode if the SYMBOL has not been defined within the current file.
The project that I´m currently working on has a common code base for Mac and ...
- 523
0
votes
1
answer
84
views
enlarge font of functions only in C code
I am trying to do exactly this for my C code, but once I edit latex, the setting is still active in uncomfortable places. I need to preserve the setting once I exit emacs and in all the buffers with C ...
- 257
3
votes
1
answer
267
views
Indentation of multi-line arrays within braces?
Currently in C mode, contents of a muli-line arrays are aligned with the brace. eg:
const unsigned int array[4] = {
A,
B,
...
- 9,025
1
vote
0
answers
289
views
Is this a c-default-style? If not, how can i configure it?
I've just started using spacemacs and the docstrings for cc-styles are a bit daunting. I've also just started working on a new project in c, and would like to keep consistent with existing style:
...
- 111
3
votes
1
answer
823
views
Customized c-offsets-alist override c-file-style in dir-locals
Assuming I customized my default C indentation settings through M-x customize-variable c-offsets-alist:
(custom-set-variables
'(c-offsets-alist
(quote
((statement-case-open . 0)
(...
1
vote
2
answers
714
views
prevent auto indent temporarily for multi line conditional, loops, etc
When I am writing in c-mode, I prefer to write multi-line control statements in the following way.
if( cond1
&& cond2
|| cond3
) {
/* stuff */
}
for( i = 0;
i < N;
++i
) {
...
- 107
0
votes
1
answer
184
views
Which value for topmost-intro-cont, to align variable names in c-mode?
In c-mode, how to align following code so, that the second variable name's starting character (A) is aligned below the first variable name's starting character (V)?
static unsigned int V_name_1,
...
- 4,656
1
vote
1
answer
236
views
How to indent c++ "special" source lines that don't end with semicolons
I'm working with a system that uses special macros a lot. For instance:
class UDSSLib : public UFunctionLibrary
{
GENERATED_BODY()
void foo();
int i;
}
The problem is the GENERATED_BODY() line....
- 496
1
vote
0
answers
25
views
Personalize indentation for new C++ language features [duplicate]
I'm starting to use C++-17, and one of the new features is if constexpr, which breaks completely the usual if identation:
int main()
{
if constexpr(true) {
return 1;
} else {
...
- 290
2
votes
1
answer
813
views
Indenting within block comments in C-mode Emacs
After writing functions in C/C++, I like to format my block comments that explain a function's purpose, parameters, use, and so on.
(See example below)
However, to indent my comments in emacs, I ...
- 215
11
votes
1
answer
945
views
formatting constexpr if in c++-mode
I recently started using C++17, which brings constexpr if. This however screws up c++-modes default indentation.
// emacs 25.3.2 with --no-init
if constexpr (n == 1) {
// Why?
} else if ...
- 113
0
votes
1
answer
89
views
objc-mode: Comment-end face is not same face as comment-start
How can I configure/modify objc-mode so that the face of comment-end is the same face as comment-start?
[The goal is to have commend-end always use font-lock-comment-delimiter-face, instead of font-...
- 19.4k
6
votes
2
answers
3k
views
How to use C++ comments "//" in c-mode?
In c-mode comment-region is adding /* */ style comments.
Is there a way to default to using C++ style // prefix in C source files instead?
- 9,025
1
vote
1
answer
142
views
Make wide string literal for C/C++
Is there function/package that allows to make "wide string literals" as defined by C/C++ standards. That is, where one has to replace all non-ascii characters with escaped "\x.." sequences.
- 135
1
vote
0
answers
159
views
Structures are defined using a macro, flycheck gives errors
In our source code we surround structures with a macro (MKDIFF) that serves as a flag for the Makefile system. It does not expand into anything, just a flag. Flycheck (understandably) flags these ...
- 584
3
votes
0
answers
470
views
How to set indentation style substatement-open offset parameter from .dir-locals.el?
Within CC mode, for C and C++ files inside a directory, I'd like to have the open braces following a case/do/for/if/while not indented, whatever the style is and without having to change anything in ....
- 131
1
vote
2
answers
154
views
Stop reindenting `if` after `else`
Given the file test.c:
int main()
{
if (a)
foo();
else
if (b) // line 6
bar();
else
baz();
}
Whenever a comma or paren is typed while point is on line 6 (...
2
votes
0
answers
412
views
Emacs as environment for iOS development
Is there any modes which may improve development experience for nowadays ObjC (syntax highlight for method calls, properties, blocks, literals, lightweight generics, modern keywords)?
Ideally with ...
- 555
3
votes
1
answer
184
views
Update cc-style to use a mix of tabs and spaces, depending on context?
I'm looking for a way to mix tabs and spaces in my cc-styles.
Whilst I question the sanity of this coding style, and wouldn't ever choose to use it had I the choice (seems other people share my view),...
- 565
3
votes
2
answers
2k
views
cc-styles c-offsets-alist setting for C++11 lambda brace indentation
I am trying to configure my cc-styles to use a single basic offset for the braces of an inline defined lambda.
I have a function template which takes a functor as an argument
template<typename ...
- 565
0
votes
1
answer
286
views
emacs cc-mode installation issue
I am relatively new to emacs. I'm wanting to set up cc-mode. I'm having trouble with the process. When I initially viewed list-packages, a search brought up cc-mode, but something I've done means it ...
- 1
4
votes
1
answer
1k
views
Override c++-mode font lock
I am improving the C++ highlighting in Emacs with the minor mode: modern-cpp-font-lock.
Consider this following C++14 code:
int main() { int i = 1'2'3l; }
From cppreference.com
Optional single ...
user12181
3
votes
4
answers
175
views
How do I find the variable or lisp code controlling a face at a particular column?
For the longest time I have been ignoring a face change at column 80 in my Java code. The text switches to a pinkish color as shown below. Now it is sufficiently bothersome that I would like to ...
- 399