Found the following significant warnings:
  dfa.cpp:155:9: warning: using integer absolute value function 'abs' when argument is of floating point type [-Wabsolute-value]
See ‘/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/fractalRegression.Rcheck/00install.out’ for details.
* used C++ compiler: ‘Debian clang version 18.1.7 (1)’
installed size is  5.5Mb
  sub-directories of 1Mb or more:
    libs   5.1Mb
installed size is  5.6Mb
  sub-directories of 1Mb or more:
    libs   5.3Mb
installed size is  5.4Mb
  sub-directories of 1Mb or more:
    libs   5.1Mb
installed size is  5.6Mb
  sub-directories of 1Mb or more:
    libs   5.3Mb