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Diffstat (limited to 'ipl/progs/delta.icn')
-rw-r--r-- | ipl/progs/delta.icn | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/ipl/progs/delta.icn b/ipl/progs/delta.icn new file mode 100644 index 0000000..f65dcc9 --- /dev/null +++ b/ipl/progs/delta.icn @@ -0,0 +1,32 @@ +############################################################################ +# +# File: delta.icn +# +# Subject: Program to list differences between successive numbers +# +# Author: Ralph E. Griswold +# +# Date: January 22, 1999 +# +############################################################################ +# +# This file is in the public domain. +# +############################################################################ +# +# This program reads a stream of numbers from standard input and write +# a stream of their first differences to standard output. +# +############################################################################ + +procedure main() + local i, j + + i := read() | exit() + + while j := read() do { + write(j - i) + i := j + } + +end |