>From wcrtomb(3): The wcrtomb() function conforms to ISO/IEC 9899/AMD1:1995 (``ISO C90, Amendment 1''). The restrict qualifier is added at ISO/IEC 9899/1999 (``ISO C99'').
This wording is confusing. Is it implying that we don't use a restrict qualifier? (We do.) If a standard changes, do we have to document how the old standard differs from what we currently follow? That seems awfully complicated. Can we just document the latest standard, or "the earliest standard that doesn't appreciably differ from the latest standard"? What's the guiding practice here?