Update paper

Author: vitaut

papers/p3904.bs

@@ -119,6 +119,10 @@ std::format("{}\n", std::filesystem::path(L"\xD801"));
 </tr>
 </table>
 
+This will enable round trip of paths from `char` strings which is currently
+not possible. The API for the read path of the round trip will be proposed by
+a separate paper.
+
 At the same time this will preserve the observable behavior for `std::print`
 when printing to a terminal. For example:
 

papers/p3904.html

@@ -1563,7 +1563,7 @@
   </style>
   <meta content="Bikeshed version 4416b18d5, updated Tue Jan 2 15:52:39 2024 -0800" name="generator">
   <link href="https://isocpp.org/favicon.ico" rel="icon">
-  <meta content="7150308f1a2a7b58628ef1bf495ac5c08e57460a" name="revision">
+  <meta content="3ac6b8c27ce6e83b84ad2e63fe1d2d24fe22297f" name="revision">
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {
     color: var(--a-normal-text);
@@ -2192,6 +2192,9 @@ <h2 class="heading settled" data-level="3" id="proposal"><span class="secno">3.
 <pre class="highlight"><c- s>"</c-><c- se>\xED\xA0\x81</c-><c- s>"</c->
 </pre>
    </table>
+   <p>This will enable round trip of paths from <code class="highlight"><c- b>char</c-></code> strings which is currently
+not possible. The API for the read path of the round trip will be proposed by
+a separate paper.</p>
    <p>At the same time this will preserve the observable behavior for <code class="highlight"><c- n>std</c-><c- o>::</c-><c- n>print</c-></code> when printing to a terminal. For example:</p>
 <pre class="language-c++ highlight"><c- n>std</c-><c- o>::</c-><c- n>print</c-><c- p>(</c-><c- s>"{}</c-><c- se>\n</c-><c- s>"</c-><c- p>,</c-> <c- n>std</c-><c- o>::</c-><c- n>filesystem</c-><c- o>::</c-><c- n>path</c-><c- p>(</c->L<c- s>"</c-><c- se>\xD800</c-><c- s>"</c-><c- p>));</c->
 </pre>