tree e5db6a1b303468525d46ba78fd73d94a3fef73fa
parent 389e808c60865e66061328448e26fe8bc60c4605
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 846871373 -0200
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 846871373 -0200

i/o functions return an error message