[fs.op.status.known]

# 31 Input/output library [[input.output]](./#input.output)

## 31.12 File systems [[filesystems]](filesystems#fs.op.status.known)

### 31.12.13 Filesystem operation functions [[fs.op.funcs]](fs.op.funcs#fs.op.status.known)

#### 31.12.13.37 Status known [fs.op.status.known]

[ð](#lib:status_known)

`bool filesystem::status_known(file_status s) noexcept;
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L18718)

*Returns*: s.type() != file_type​::​none[.](#1.sentence-1)
