P3: Somewhat important Description
Most debuggers support setting a breakpoint using a file name and line number.
Some debuggers also support setting a breakpoint using a file name, line number and a column number.
Specifying a column number allows breaking in a specific sub-expression or function call.
It would be nice if Qt Creator supported that.
The only C++ / native code debugger that supports that at the moment is lldb (from what i know).
$ lldb
help breakpoint set
....
-u <column> ( --column <column> )
Specifies the column number on which to set this breakpoint.
gdb has an open bug report to add support, cdb/msvc i didn't find anything in the documentation.
There are other language debuggers that support column breakpoints, like javascript, typescript, powershell. It might be relevant for future Debugger Adapter protocol support.
Here's a video of what the UX for column breakpoints looks like in visual studio code.
https://github.com/microsoft/vscode/issues/14784#issuecomment-278299633
And a screenshot.
I know it's a long shot, but i figured i'd file a report anyway.
