This the C++ version of membuffer. Since everything is C++, it can
just be made the default.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Had to rewrite the thing, because gcc's warnings don't work
with templatized var-args. Since there is no string-format.cpp
and I didn't want to inline it, moved it to format.cpp.
String formatting is distributed around at least four
headers: membuffer.h, subsurface-string.h, format.h
and format-string.h. This really should be unified!
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
