ampersand issue with texi2dvi

[Heiko Stamer]

Dear texinfo developers,

I run into an issue with texi2dvi (see attached example file) that
results in the following error messages:

$ texi2dvi libTMCG_bug.texi
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017)
(preloaded format=etex)
 restricted \write18 enabled.
entering extended mode
(./libTMCG_bug.texi (/usr/share/texmf-dist/tex/texinfo/texinfo.tex
Loading texinfo [version 2016-09-18.18]: pdf, fonts, markup, glyphs,
page headings, tables, conditionals, indexing, sectioning, toc,
environments,
defuns, macros, cross references, insertions,
(/usr/share/texmf-dist/tex/generic/epsf/epsf.tex
This is `epsf.tex' v2.7.4 <14 February 2011>
) localization, formatting, and turning on texinfo input format.) [1] [2]
[-1] Chapter 1
Writing index file libTMCG_bug.cp
Writing index file libTMCG_bug.tp
Writing index file libTMCG_bug.fn
./libTMCG_bug.texi:86: Argument of & has an extra }.
<inserted text>
                @par
<to be read again>
                   }
@tclose ...n @rawbackslash @plainfrenchspacing #1}
                                                  @null
@codex #1->@tclose {#1}
                       @endgroup
<argument> ..._in, @code {const std::vector<int>&}
                                                   fd_in_in, @code
{const st...

@defunargs ...arkupstyle address@hidden {##1}}}#1
                                                  @sl @hyphenchar @font =45
...
l.86 ...st bool} aio_is_encrypted_in @code{=true})

How can I avoid this error without adding an extra space at the end of
the @code-block?

Best regards,
Heiko.

libTMCG_bug.texi
Description: Text Data