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Fuzion • Library Modules • base • io • file • use

use

io.file.use

use
(R 
type
:
Type, file_name String, m io.file.this.mode.val, code Function (outcome R))
 => 
outcome R
[src]
this opens a file with the given mode.
on success it instates effects:

file.this.open,
(io.buffered file.this.file_mutate).reader and
(io.buffered file.this.file_mutate).writer.

These can then be used in `code()`.

usage example:

What are effects?

Type Parameters

R
[src]
0.095dev (2025-08-15 12:02:22 GIT hash 301b5b75e77076d091b38f555473f9f0e31e5b5c built by fridi@fzen)