Change write to use datum labels only when cycles are present.
authorChris Hanson <org/chris-hanson/cph>
Sat, 10 Aug 2019 05:42:22 +0000 (22:42 -0700)
committerChris Hanson <org/chris-hanson/cph>
Sat, 10 Aug 2019 05:51:56 +0000 (22:51 -0700)
commit20e1e888f5d7fe65517b28afc0d0c6bfc0e53482
tree12acc393256e64553e043fcf447434c570288743
parent3b4ef16a54e4957f13ac59f22020e47d21f4d799
Change write to use datum labels only when cycles are present.

This is required by R7RS but was not understood earlier.
src/runtime/printer.scm