с++ 14

[Сергей Плетнев]

Добрый день! 

Судя по коду для сборки проекта libuavcan валидны с++ 03 и 11.

Какие есть ограничения по работе с с++14?

[Pavel Kirienko]

Hi Sergei,

Libuavcan can be built with any C++ standard from C++98 upwards. The library can automatically detect the version of the standard only up to C++11; if you're using C++14 or C++17, you will need to manually set UAVCAN_CPP_VERSION to UAVCAN_CPP11.

Some additional info is available here: https://uavcan.org/Implementations/Libuavcan/#c-compiler-requirements

Hope this helps!

Pavel.

P.S. let's stick to English in this group, most subscribers don't speak Russian.

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[Сергей Плетнев]

Thank You for your response!

I use your advice and build libuavcan with UAVCAN_CPP11. Main project for stm32f1xx and dev tools are msvs + ARM Toolchain + visualGDB. I get 221 errors after building. The most errors allocates in libuavcan files and relates with abscence of deffinition for key values or abscence of include files. 

I use the last release version of library. 

. 

четверг, 13 сентября 2018 г., 19:25:25 UTC+3 пользователь Pavel Kirienko написал:

[Pavel Kirienko]

The section titled "Build is failing because of missing header files" is a good place to start: https://uavcan.org/Implementations/Libuavcan/FAQ/#build-is-failing-because-of-missing-header-files

Let us know please if that doesn't help.

Pavel.

To view this discussion on the web visit https://groups.google.com/d/msgid/uavcan/bdce29fa-8051-434f-99a8-f0843f73c3cd%40googlegroups.com.

[CyberMerln]

You also might what to see this issue on GITHUB: https://github.com/UAVCAN/libuavcan/issues/157. 

Mike

[Сергей Плетнев]

You right!

I forgot about dsdl. While I do not know how make autogeneration dsdl in my dev environment. 

Therefore I solve to check of libuavcan building by means of px cygwin toolchain.

And get error messages at the building:

The part of code which call exception:

57    types = run_parser(source_dirs, include_dirs + source_dirs)

58    if not types:

59        die('No type definitions were found')

60

61    logger.info('%d types total', len(types))

62    run_generator(types, output_dir)

May be you know the reason of such errors?

четверг, 13 сентября 2018 г., 21:51:17 UTC+3 пользователь Pavel Kirienko написал:

[Pavel Kirienko]

This could be a problem with your build environment. Please run the DSDL compiler with -vvv for extra verbose output and see if there are any sensible messages preceding the exception.

Pavel.

To view this discussion on the web visit https://groups.google.com/d/msgid/uavcan/60333f9c-7252-4042-b4fc-dea4f58809da%40googlegroups.com.

[Сергей Плетнев]

I use next command to compile DSDL files:

libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdlc /cygdrive/c/libuavcan/dsdl/uavcan -Oinclude/dsdlc_g -vvv

And I get many raws output of data types compilation details with result: 

83 types total

And next error messages:

Generator failure

Traceback (most recent call last):

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/__init__.py", line 101, in run_generator

    template_expander = make_template_expander(TEMPLATE_FILENAME)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/__init__.py", line 291, in make_template_expander

    template = Template(template_text)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/pyratemp.py", line 1202, in __init__

    parsetree = p.parse(tmpl)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/pyratemp.py", line 553, in parse

    return self._parse(template)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/pyratemp.py", line 680, in _parse

    self._testexpr(cond.group("iter"), pos_p+cond.start("iter"))

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/pyratemp.py", line 565, in _testexpr

    raise TemplateSyntaxError(err, self._errpos(fpos))

TemplateSyntaxError: line 16, col 17: invalid syntax (, line 1)

Compiler failure

Traceback (most recent call last):

  File "libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdlc", line 61, in <module>

    dsdlc_run(args.source_dir, args.incdir, args.outdir)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/__init__.py", line 62, in run

    run_generator(types, output_dir)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/__init__.py", line 111, in run_generator

    die(ex)

  File "/cygdrive/c/libuavcan/libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/__init__.py", line 89, in die

    raise DsdlCompilerException(str(text))

DsdlCompilerException: line 16, col 17: invalid syntax (, line 1)

line 16, col 17: invalid syntax (, line 1)

If you have ideas about this errors I will be glad to listen)

пятница, 14 сентября 2018 г., 12:00:11 UTC+3 пользователь Pavel Kirienko написал:

[Pavel Kirienko]

Okay, now it looks as if your working copy got somehow damaged. Please re-check that it's correct and matches the repository, and post your copy of the file "data_type_template.tmpl" here.

Pavel.

To view this discussion on the web visit https://groups.google.com/d/msgid/uavcan/74b85012-5af6-44fe-a864-ae8eee8fd15f%40googlegroups.com.

[Сергей Плетнев]

I was deleted my copy and cloned libuavcan again, then updated submodule and ran dsdl compiler. This time were no errors.

And next I made success building libuavcan:

[100%] Linking CXX static library libuavcan.a

[100%] Built target uavcan

Thank you for your help! 

пятница, 14 сентября 2018 г., 19:14:34 UTC+3 пользователь Pavel Kirienko написал: