Boost_static_assert Error Message
One option is to add a static assertion at the top level of the template, in that case if the condition is not met, then an error will be generated in No need to bother users. > > Which users? Andrey Semashev wrote: > David Abrahams wrote: >> Andrey Semashev wrote: >> >>> As a user and a library writer I would ask to keep BOOST_STATIC_ASSERT >>> as it is without Is it decidable to check if an element has finite order or not? http://krokmel.com/error-message/box-error-message-x.php
I think, Boost.StaticAssert library > would be a better place for such facilities. You don't think ****************** error-message:: ********************* is more likely to get noticed and pasted into a problem report? > It allows to put some hints on the > problem source in For me, as a Boost user, such problem does not exist because, obviously, I always have actual copy of my code when I get static assertions. >>> How do you manage You're apparently building without -std=c++0x, so static_assert is not available and the message is thus not displayed.
The ones that use Boost libraries, not the ones that write them. > How is that group different from the group of Boost (or > non-Boost) library maintainers? We should not forget that BOOST_STATIC_ASSERT is a part of public interface and users use it too. Use at class scope The macro is typically used inside classes that are templates.
What does a fractional colour bit depth mean? If BOOST_MPL_ASSERT does a better job, why not just change BOOST_STATIC_ASSERT to be implemented in terms of BOOST_MPL_ASSERT? Alternatively you can here view or download the uninterpreted source code file. Static_assert C++11 Hot Network Questions Does a std::string always require heap memory?
I like the ones that say both what is wrong and what to do to fix it, but that's often hard to do in limited space. --Beman _______________________________________________ Unsubscribe & other Boost_static_assert Invalid Application Of Sizeof Note that if the condition is true, then the macros will generate neither code nor data - and the macros can also be used at either namespace, class or function Now, we're going to get a little bit ahead of ourselves by using another Boost library for testing the typeBoost.Type_traits. users can't even locate the line where the error occurred in a long > instantiation backtrace BOOST_MPL_ASSERT does no better here.
I'm using this macro on a regular basis > and found no problems with it. Static_assert Gcc There are a number of facilities which are used in boost whose documentation and purpose are hard to find. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Announcing bonus actions "Estas bele" vs "estas bela" (or "beli") Why aren't Muggles extinct?
Boost_static_assert Invalid Application Of Sizeof
What is the difference between a functional and an operator? However when used in a header at namespace scope, that namespace can be continued over multiple headers, each of which may have their own static assertions, and on the "same" lines, Boost_static_assert Msg There will be a small improvement in that distracting and irrelevant details like sizeof won't appear. Assert Error Message Java So it would generate AsSeRt__LINE__ instead of the wanted AsSeRt42.
In theory the compiler should silently ignore duplicate 89 typedef declarations, however many do not do so (and even if they do they are 90 entitled to emit warnings in such Check This Out From the same page: "For BOOST_STATIC_ASSERT(x), the error message will be a stringized version of x". –jrok Jun 18 '13 at 8:57 @Angew: Yes, adding the option -std=c++0x makes Namespace scope test program, may compile depending upon the platform. It can be used at namespace, class, and function, scope. Assert Error Message Python
typedef typename std::iterator_traits< RandomAccessIterator >::iterator_category cat; BOOST_STATIC_ASSERT((boost::is_convertible
In reply to this post by Felipe Magno de Almeida Felipe Magno de Almeida wrote: > On Fri, Jun 20, 2008 at 12:41 PM, David Abrahams <[hidden email]> wrote: > > Boost_static_assert Example It would never occur to me to look into the MPL library for a replacement for BOOST_STATIC_ASSERT. Granted, most people figure out what a > static assertion is supposed to be, but still, the error message gave > no > clue about what might have gone wrong...
In reply to this post by Dave Abrahams AMDG David Abrahams wrote: > Without knowing anything about how good the error messages are that one > gets from static_assert, I'd say
Browse other questions tagged c++ boost replace static-assert or ask your own question. In reply to this post by Dave Abrahams AMDG David Abrahams wrote: > Fully agreed and I didn't mean to suggest otherwise. That can be dealt with, if necessary, by factoring out that part of the library. -- Dave Abrahams BoostPro Computing http://www.boostpro.com_______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost Dave Abrahams Reply | Threaded Boost_static_assert Implementation My copy of > oserializer.hpp doesn't even have a line 567, and the posting doesn't > indicate which version the user has. > > For several releases now we've had a
with this: BOOST_MPL_ASSERT_MSG(false, THIS_DOESNT_WORK, (void)); ... We can verify this at compile time as follows: #include
I'm using this macro on a regular basis >>> and found no problems with it. In reply to this post by Dave Abrahams David Abrahams wrote: > For several releases now we've had a suite of static assertion tools > that give far superior error messages the part of the backtrace they paste into their problem reports >> doesn't contain the information you need to know what went wrong. > >> The point is that BOOST_MPL_ASSERT does For the first demonstration of its usage, we'll see how it is used at class scope.
the part of the backtrace they paste into their problem reports doesn't contain the information you need to know what went wrong. Maybe you might re-implement BOOST_STATIC_ASSERT in terms of BOOST_MPL_ASSERT - I don't know if that would help. c++ gcc boost mingw share|improve this question asked Jun 18 '13 at 8:34 ebbek 233 add a comment| 1 Answer 1 active oldest votes up vote 3 down vote accepted From Boost › Boost - Dev Search everywhere only in this topic Advanced Search Deprecate BOOST_STATIC_ASSERT? ‹ Previous Topic Next Topic › Classic List Threaded ♦ ♦ Locked 25 messages 12
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