From: Ernesto Durante <stobossey@gmail.com>
To: emacs-orgmode@gnu.org
Subject: Re: babel: ob-C with Visual C++ and compilation-mode
Date: Wed, 13 Aug 2014 22:58:23 +0200 [thread overview]
Message-ID: <87zjf8cdjk.fsf@gmail.com> (raw)
In-Reply-To: <53EA8F2B.7010205@free.fr> (Thierry Banel's message of "Wed, 13 Aug 2014 00:03:23 +0200")
Thierry Banel <tbanelwebmin@free.fr> writes:
>> I have identified a minor bug. When a source code block has the mode
>> cpp, we cannot expand the code or more precisely the code is not
>> expanded in the correct way because the following function is missing
>>
>> (defun org-babel-expand-body:cpp (body params)
>> "Execute BODY according to PARAMS.This function calls `org-babel-expand-body:C++'."
>> (org-babel-expand-body:C++ body params))
> Thanks for reporting this ! You may consider submitting a patch for this
> bug. The comment "Execute BODY ..." should be changed to "Expand BODY ...".
>
>>
Ok I will change the comment
>> Best
>> Ernesto
> You are very welcome
> Thierry
Thank you Thierry for your answer and all the details. I really want to be a contributor
and help ob-C to improve (as well as can do a modest lisper).
I tried to find a way to master Cx11 and babel is helping me a lot.
I think babel can really accelerate learning and dissimation of C++.
In this perspective, I have another very simple idea that I want to share
with you. I find C++ too noisy. In the following piece of code
I really find the presence of the main call and the return statement really annoying and useless.
#+begin_src C++ :includes '(<iostream> <cassert>) :results silent
template <typename T1, typename T2>
auto compose(T1 t1, T2 t2) -> decltype(t1 + t2) { return t1+t2; }
int main() {
auto d=compose(std::string("ola"),std::string("ciao")); //d's type is std::string
auto i=compose(4,2);
assert(d== std::string("olaciao") && i==6);
return 0
}
#+end_src
We can remove it by letting ob-C do the work by modifying the function
org-babel-C-ensure-main-wrap. Now the code looks (according to me) easier to read
#+begin_src C++ :includes '(<iostream> <cassert>) :results silent
template <typename T1, typename T2>
auto compose(T1 t1, T2 t2) -> decltype(t1 + t2) { return t1+t2; }
template <>
int compose(int t1,int t2) { return t1+t2; }
////main////
auto d=compose(std::string("ola"),std::string("ciao")); //d's type is std::string
auto i=compose(4,2);
assert(d== std::string("olaciao") && i==6);
#+end_src
What do you think ?
Best
Ernesto
next prev parent reply other threads:[~2014-08-13 20:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-04 16:16 babel: ob-C with Visual C++ and compilation-mode Ernesto Durante
2014-08-11 19:40 ` Thierry Banel
2014-08-12 14:24 ` Ernesto Durante
2014-08-12 22:03 ` Thierry Banel
2014-08-13 20:58 ` Ernesto Durante [this message]
2014-08-14 20:40 ` Thierry Banel
2014-08-15 17:22 ` Ernesto Durante
2014-08-17 11:20 ` Thierry Banel
2014-08-18 11:19 ` Ernesto Durante
2014-08-18 12:51 ` Eric Schulte
2014-08-24 13:05 ` Ernesto Durante
2014-08-28 14:02 ` Eric Schulte
2014-08-18 19:59 ` Thierry Banel
2014-08-20 20:40 ` Ernesto Durante
2014-08-21 19:48 ` Thierry Banel
2014-08-24 12:57 ` Ernesto Durante
2014-08-28 19:44 ` Thierry Banel
2014-08-18 2:41 ` Eric Schulte
2014-08-18 2:40 ` Eric Schulte
2014-08-23 11:03 ` Ernesto Durante
2014-08-25 16:35 ` [PATCH] " Ernesto Durante
2014-08-28 14:46 ` Eric Schulte
2014-09-10 9:27 ` Achim Gratz
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