cpp and golang code fold problem

[YZ Xie]

Hi everyone,

my .vimrc was 

set foldmethod=syntax 

filetype plugin indent on   " Automatically detect file types.

syntax enable

 syntax on  

                 

but  it cannot fold code if file was named like *.cpp, but it can work well if file was name *.c or *.cc.  golang code failed too.

my vim was installed by source code from github,runtime director is /usr/share/vim/vim80. 

I have export VIMRUNTIMEDIR= /usr/share/vim/vim80 in /etc/profile and source it.

vim version was 8.0.439. 

how can I fix this problem?

thanks

[YZ Xie]

在 2017年3月29日星期三 UTC+8下午1:16:40，YZ Xie写道：

when zc it show E490 no fold found, but rename source file from *.cpp to *.c or *.cc, it works well

[Charles E Campbell]

Hello:

I just opened a *.cpp file with fdm=syntax, and it folded just fine
using your .vimrc (plus using set nocp). Got any example source you
care to share that won't fold?

Also,syntax-enabled folding is something that the syntax highlighting
maintainers specify in ther syntax highlighting files. I suggest you
make some examples that won't fold and send them along with an
explanation to the syntax files' maintainers.

Regards,
Chip Campbell

[YZ Xie]

Hi Campbell,

here is my code, 

test.h

================================================================

#include <iostream>

#include <string>

using namespace std;

class A {

public:

    A();

    string& print_name();

private:

    string& o_print();

    string name;

}

=================================================================

test.cpp

=================================================================

#include "test.h"

A::A()

{

    name = "xie";

}

string& A::print_name(){

    return do_print();

}

string& A::do_print() {

    cout << name << endl;

    name = "yang";

    return name;

}

int main()

{

    A a;

    string str = a.print_name();

    cout << str.c_str() << endl;

}

===================================================================

when rename test.cpp to test.cc, it works well, here is two screenshots

Regards

Xie

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[Christian Brabandt]

Hi YZ!

In both cases please check the output of `:verbose set fdm? fen?`

Best,
Christian

[YZ Xie]

Hi Christian,

thanks, you're right, fdm was different when file postfix was different, *.cc was syntax, *.cpp was manual, so I need to check my .vimrc. but I have set fdm to syntax, it's strange.

Best

YZ