ssize - obtain the size of a seplib file
int ssize(tag)
tag for dataset
The tag argument is either the string ``in'' or any tag appropriate for use with auxin(). This means either an explicit filename or a command line redirect parameter tag=filename.
The return value is the size in bytes of the seplib data file or -1 on error.
seplib, the sreed manpage, the srite manpage, the ssize manpage
-1 = is returned if there is an error.
x = number of bytes in file
size
sep