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Dear all,

I have a problem with org-babel and the export of C++11 code to LaTeX.

I report below a simple example of a problem file:

---------------------

#+TITLE: CPP example
#+LaTeX_HEADER: \usepackage{minted}
#+LaTeX_HEADER: \usemintedstyle{emacs}


* Example of c++11

An example of c++11

#+HEADERS: :results output :exports both
#+name: Example
#+BEGIN_SRC cpp
#include <vector>
#include <iostream>

using namespace std;
int main()
{
    std::vector<int> v = {1, 2, 3};

    for (auto x : v) cout << x << ", ";
    cout << endl;
}
#+END_SRC

And these are the results:

#+RESULTS: Example
: 1, 2, 3,

------------------

If I export this file to LaTeX everything works fine, and I see the code
nicely formatter in the pdf file. Unfortunately, when I try to compile and
execute the
code with C-c-C-c, I get an error: in facts, to compile the code above
according to
the c++11 standard, I need to specify ":flags -std=c++11". Therefore, I
changed the header as follows:

------------------

#+BEGIN_SRC cpp :flags -std=c++11
...
#+END_SRC

---------------------

Now, when I press C-c-C-c, I the code is compiled and executed
correctly. However, I get another problem: when exporting to LaTeX,
the code disappears from the pdf file. By looking at the generated .tex
file, I see the following lines:

---------------------
\begin{minted}[]{cpp"-std=c++11"}
...
\end{minted}
---------------------

As you can see, the flags are wrongly copied after the language
specification. Therefore, minted does not work and does not output the
code.

I tried to put the :flags specification in the HEADERS, but it does not
work (fails for compile).

Also, the results do not appear in the pdf file, even by specifying
":exports both".

Any clue of what it is going on?

Best

Giuseppe Lipari


Emacs  : GNU Emacs 23.4.1 (i686-pc-linux-gnu, GTK+ Version 2.24.18)
 of 2013-06-17 on akateko, modified by Debian
Package: Org-mode version 7.9.4 (7.9.4-elpa @
/home/lipari/.emacs.d/elpa/org-20130401/)

current state:
==============
(setq
 org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars)
 org-export-latex-listings 'minted
 org-speed-command-hook '(org-speed-command-default-hook
org-babel-speed-command-hook)
 org-babel-load-languages '((dot) (emacs-lisp . t) (mscgen) (latex . t)
(python . t) (sh) (C . t))
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-babel-tangle-lang-exts '(("C++" . "cpp") ("python" . "py") ("latex" .
"tex")
                  ("emacs-lisp" . "el"))
 org-export-latex-format-toc-function 'org-export-latex-format-toc-default
 org-latex-to-pdf-process '("pdflatex -shell-escape -interaction
nonstopmode -output-directory %o %f" "pdflatex -shell-escape -interaction
nonstopmode -output-directory %o %f" "pdflatex -shell-escape -interaction
nonstopmode -output-directory %o %f")
 org-tab-first-hook '(org-hide-block-toggle-maybe
org-src-native-tab-command-maybe
              org-babel-hide-result-toggle-maybe
org-babel-header-arg-expand)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
org-src-mode-configure-edit-buffer)
 org-confirm-shell-link-function 'yes-or-no-p
 org-export-first-hook '(org-beamer-initialize-open-trackers)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-export-latex-packages-alist '(("" "minted"))
 org-babel-pre-tangle-hook '(save-buffer)
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
          org-cycle-show-empty-lines
org-optimize-window-after-visibility-change)
 org-export-latex-classes '(("acm-proc"
"\\documentclass{acm_proc_article-sp}"
                 ("\\section{%s}" . "\\section*{%s}")
                 ("\\subsection{%s}" . "\\subsection*{%s}")
                 ("\\paragraph{%s}" . "\\paragraph*{%s}")
                 ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                ("article" "\\documentclass{article}"
                 ("\\section{%s}" . "\\section*{%s}")
                 ("\\subsection{%s}" . "\\subsection*{%s}")
                 ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                 ("\\paragraph{%s}" . "\\paragraph*{%s}"))
                ("article" "\\documentclass[11pt]{article}"
                 ("\\section{%s}" . "\\section*{%s}")
                 ("\\subsection{%s}" . "\\subsection*{%s}")
                 ("\\subsubsection{%s}" . "\\subsubsection*{%s}")
                 ("\\paragraph{%s}" . "\\paragraph*{%s}")
                 ("\\subparagraph{%s}" . "\\subparagraph*{%s}"))
                ("report" "\\documentclass[11pt]{report}"
                 ("\\part{%s}" . "\\part*{%s}") ("\\chapter{%s}" .
"\\chapter*{%s}")
                 ("\\section{%s}" . "\\section*{%s}")
                 ("\\subsection{%s}" . "\\subsection*{%s}")
                 ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                ("book" "\\documentclass[11pt]{book}" ("\\part{%s}" .
"\\part*{%s}")
                 ("\\chapter{%s}" . "\\chapter*{%s}")
                 ("\\section{%s}" . "\\section*{%s}")
                 ("\\subsection{%s}" . "\\subsection*{%s}")
                 ("\\subsubsection{%s}" . "\\subsubsection*{%s}"))
                ("beamer" "\\documentclass{beamer}" org-beamer-sectioning))
 org-export-preprocess-before-normalizing-links-hook
'(org-remove-file-link-modifiers)
 org-export-latex-hyperref-format "\\ref{%s}"
 org-mode-hook '(#[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook org-show-block-all append
local] 5]
         #[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook org-babel-show-result-all
append local] 5]
         org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
org-babel-execute-safely-maybe)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-export-interblocks '((src org-babel-exp-non-block-elements))
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 org-occur-hook '(org-first-headline-recenter)
 org-from-is-user-regexp "\\<Giuseppe Lipari\\>"
 org-export-preprocess-before-selecting-backend-code-hook
'(org-beamer-select-beamer-code)
 org-confirm-babel-evaluate nil
 org-export-latex-final-hook '(org-beamer-amend-header org-beamer-fix-toc
                   org-beamer-auto-fragile-frames
                   org-beamer-place-default-actions-for-lists)
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-export-blocks '((src org-babel-exp-src-block nil)
             (export-comment org-export-blocks-format-comment t)
             (ditaa org-export-blocks-format-ditaa nil)
             (dot org-export-blocks-format-dot nil))
 )


-- 
Giuseppe Lipari
RETIS Lab, CEIIC
Scuola Superiore Sant'Anna
via Moruzzi, 1
56127 Pisa
tel:   050 882030
fax:  050 882003
web: http://feanor.sssup.it/~lipari/
blogs: http://scacciamennule.blogspot.com
          http://okpanico,wordpress.com
          http://algoland.wordpress.com