[#fsbridge-FopenFn]
= xref:fsbridge.adoc[fsbridge]::FopenFn
:relfileprefix: ../
:mrdocs:

Callable type matching fopen, so a custom file opener can be injected.

== Synopsis

Declared in `<util/fs.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
using FopenFn = std::function<FILE*(xref:fs/path.adoc[fs::path] const&, char const*)>;
----


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