On Saturday, 18 January 2014 at 21:55:54 UTC, Tobias Pankrath
wrote:
I want to print a tree structure and need to keep track of the
indention for different parts of the tree. My idea was to write
a generic wrapper for an output range that outputs tabs when it
encounters a newline. This wrapper has internal state and if I
want to use formattedWrite with this wrapper than state changes
don't propagate to the calling context because by value
semantics.
Short solution: I'm using a class now.
Alternatively, pass a pointer: formattedWrite(&writer, ...)