$ ./rtoa-pgatram-fixed t1.txt >f.tmp
read_input_files  : 3999000 items
read file time    :    0.164 secs
roman_to_dec time :    0.088 secs
output time       :    0.100 secs
total time        :    0.353 secs
$ diff f.tmp roman.tmp
$ ./rtoa-pgatram-fixed t1.txt >f.tmp
read_input_files  : 3999000 items
read file time    :    0.167 secs
roman_to_dec time :    0.086 secs
output time       :    0.098 secs
total time        :    0.353 secs
$ diff f.tmp roman.tmp
$ ./rtoa-pgatram-fixed t1.txt >f.tmp
read_input_files  : 3999000 items
read file time    :    0.173 secs
roman_to_dec time :    0.086 secs
output time       :    0.093 secs
total time        :    0.353 secs
$ diff f.tmp roman.tmp