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

Callable type matching fopen, so a custom file opener can be injected&period;

== Synopsis

Declared in `&lt;util&sol;fs&period;h&gt;`

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


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