# [ref_impl_eiffel] [975] Add some missing pre- and postconditions to C_STRING. **Category:** [Reference Implementation: Eiffel (archive)](https://discourse.openehr.org/c/reference-implementation-eiffel-archive/161) **Created:** 2010-07-03 00:20 UTC **Views:** 2 **Replies:** 0 **URL:** https://discourse.openehr.org/t/ref-impl-eiffel-975-add-some-missing-pre-and-postconditions-to-c-string/13445 --- ## Post #1 by @svn1 Revision: 975 Author: peter\.gummer Log Message: --- **Canonical:** https://discourse.openehr.org/t/ref-impl-eiffel-975-add-some-missing-pre-and-postconditions-to-c-string/13445 **Original content:** https://discourse.openehr.org/t/ref-impl-eiffel-975-add-some-missing-pre-and-postconditions-to-c-string/13445