Tukukkk

I am using TrueSTUDIO 9.1.0 and also tested this within fresh Eclipse IDE for C/C++ developers version: 2018-09 (4.9.0).

Automatic code formatter seems to be putting semicolon after a macro call on a new line.

Steps to reproduce:

1. Download Eclipse IDE for C/C++ developers version: 2018-09 (4.9.0) for Windows 32bit.




2. Create new empty C project



3. 
   

   Create .c file with code:

   
   
   

   #define testmacro() do {printf("test");} while (0)

   
   
   

   void main(void) {
testmacro();
}

   
   



4. Format the whole file by pressing Ctrl+Shift+F



5. 
   

   Get:

   
   
   

   #define testmacro() do {printf("test");} while (0)

void main(void) {
testmacro()
;
}

   
   

It was discussed and dismissed in this question (link) for the reason that it was fixed.

Am I doing something wrong or did the error come back?

I don't think you're doing anything wrong, the CDT built-in formatter is just buggy and unmaintained. There are dozens of open bugs about its behaviour. In this case, it looks like bug 475349.

I would recommend using a plugin that wraps a modern, maintained formatter like clang-format, such as CppStyle.