tree 591b8897bd5a5bc132a190d526df7dc039df9246
parent 30fdda6c998d9fc87601b50c7fea4447d52f8d12
author Rich Felker <dalias@aerifal.cx> 1510290796 -0500
committer Rich Felker <dalias@aerifal.cx> 1510290909 -0500

refactor iconv conversion descriptor encoding/decoding

this change is made to avoid having assumptions about the encoding
spread out across the file, and to facilitate future change to a form
that can accommodate allocted, stateful descriptors when needed.

this commit should not produce any functional changes; with the
compiler tested the only change to code generation was minor
reordering of local variables on stack.