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Boost System Error Codes

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This answer to similar question describe it: http://stackoverflow.com/a/23849966/2464169 share|improve this answer edited Feb 2 at 21:38 answered Feb 2 at 21:14 Vizor 498 add a comment| Your Answer draft saved more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Zero Emission Tanks Help! asked 2 years ago viewed 1322 times active 2 years ago Blog International salaries at Stack Overflow Linked 9 Using 'boost::system::error_code' in C++ Related 1questions about my first program using Boost have a peek here

The People Of Trutham-And-Ly Why was the Rosetta probe programmed to "auto shutoff" at the moment of hitting the surface? Not the answer you're looking for? Chapter 55. Boost.SystemBoost.System is a library that, in essence, defines four classes to identify errors. c++ boost boost-asio share|improve this question edited Nov 2 '12 at 2:58 Sam Miller 18.1k34373 asked Oct 4 '10 at 16:37 Gearoid Murphy 5,509104165 I don't know boost, but

Boost System Error_code

Where are the source code repositories? Which book is set in a giant spaceship that can create life? There are only a few member functions. Example 55.1 assigns the error code boost::system::errc::not_supported to ec.

Example 55.3. Creating error categories#include #include #include class application_category : public boost::system::error_category { public: const char *name() const noexcept { return "my app"; } std::string message(int ev) const { return Other asio includes cause no problem. –Tomáš Zato Nov 2 '15 at 14:35 In Modular Boost (my version is 1.6.1) the file "error_codes.hpp" is in boost/system. My home PC has been infected by a virus! Jandy Salt System Error Codes There is a second variant of the function boost::asio::ip::host_name() that works just like this.PrevNext The Boost C++ LibrariesThe Boost C++ LibrariesPrefaceIntroductionPart I. RAII and Memory ManagementPart II. String HandlingPart III. ContainersPart IV. Data StructuresPart V. AlgorithmsPart VI. CommunicationPart VII. Streams and FilesPart VIII. TimePart IX. Functional ProgrammingPart X. Parallel ProgrammingPart XI. Generic ProgrammingPart XII. Language

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 Boost System Error Code Example Ideas, requests, problems regarding TWiki? This is an object of type boost::system::error_category. assert(code1.value() == code2.value()); assert(code1.default_error_condition().value() == code2.default_error_condition().value()); // Use the comparision operation to check both value // and category.

There is a slight difference between the boost and non-boost asio versions here: - In CVS for the non-boost version of asio I have simply defined the categories as an enum System Error Codes Linux Is there an in-game explanation for the increase in the number of Pokemon between generations? In that design, an error_code constant is implemented so that it matches the OS-specific error, where possible. It is bad for embedded.

Boost System Error Code Example

Trying to create safe website where security is handled by the website and not the user Best practice for map cordinate system more hot questions question feed default about us tour Should I use Asio or Boost.Asio? Boost System Error_code Greate post!I've once use Asio to wrap MySQL C API and porting MySQL error codes to Boost.System. Boost Asio Error Codes Boost C++ Libraries ...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards Click here to view

The People Of Trutham-And-Ly Is "The empty set is a subset of any set" a convention? http://hammerofcode.com/error-code/boost-error-code-995.php assert(code1 != code2); assert(code1.default_error_condition() != code2.default_error_condition()); // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // Test with Boost.Filesytem try { boost::filesystem::canonical("bogus_file"); } catch(boost::filesystem::filesystem_error& error) { if (error.code() == make_error_code(boost::system::errc::no_such_file_or_directory)) { std::cout << "No file or directory" << For now you should think of the std::errc::* enumerators as placeholders for error_condition constants. The error codes are derived from the system codes. Boost Mobile Error Codes

There > is a slight difference between the boost and non-boost asio versions > here: > > - In CVS for the non-boost version of asio I have simply defined the Where do I get a release package? This may provide some light: http://www.boost.org/doc/libs/1_44_0/libs/system/doc/index.html share|improve this answer answered Oct 4 '10 at 16:57 rturrado 1,83311936 add a comment| Your Answer draft saved draft discarded Sign up or log Check This Out c++ boost error-handling share|improve this question edited Apr 22 '15 at 13:36 DavidRR 5,13472747 asked Jan 10 '14 at 14:24 Boehmi 1582314 Well you do return directly, which means

What should I do? Windows System Error Codes Why do most log files use plain text rather than a binary format? Summary on async (void) Method: What to return?

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This exception can transport an error code of type boost::system::error_code. Tenant paid rent in cash and it was stolen from a mailbox. Can Asio and Boost.Asio coexist in the same program? Msdn System Error Codes when you use operator== or operator!=):error_code against error_code - checks for exact match.error_condition against error_condition - checks for exact match.error_code against error_condition - checks for equivalence.I hope that it's now obvious

Discover unlimited learning on demand for around $1/day. This code should not have to pay the cost of distinguishing // between categories, since it is not yet known if that is needed. // // * Users wishing to write This makes it possible to use error codes that do not interfere with error codes from other developers. this contact form Every other number refers to an error.

Asio includes these under its own namespace ( asio::error_code and asio::system_error). In particular, error codes returned by asynchronous socket handlers?, Google and grepping the header files have tuned up empty. Does the age of the universe take into account GR/SR? However, I'm finding that when I know that something has gone wrong, errcode stays 0 which is not helpful.

This means you should write:std::error_code ec;create_directory("/some/path", ec);if (ec == std::errc::file_exists) ...This works because the library implementor has defined the equivalence between the error codes EEXIST or ERROR_ALREADY_EXISTS and the error condition Should I use Asio or Boost.Asio? Boost.Asio – Other Features std streams and std buffer I/O Co-routines Summary 7. I think anybody implementing a protocol would find > any tips useful In a nutshell: * Define your set of errors as an enum: enum my_errors { first = 1, second,

No. This is the category errors belong to if they aren’t assigned to another category explicitly. Best practice for map cordinate system Tenant paid rent in cash and it was stolen from a mailbox. Can taking a few months off for personal development make it harder to re-enter the workforce?

In a later part I'll explain how that works.)How to know what conditions you can test forSome of the new library functions in C++0x have "Error conditions" clauses. On Linux, it's /usr/include/asm-generic/errno-base.h and /usr/include/asm-generic/errno.h), see lxr.linux.no/linux/include/asm-generic/errno-base.h and lxr.linux.no/linux/include/asm-generic/errno.h . –pts Oct 4 '10 at 16:46 is your question resolved now? –Sam Miller Oct 16 '10 at 14:20 Regular expression substring for labelling What do you call a GUI widget that slides out from the left or right? Such an error could be, for example, a failed access to a non-existing file.

Example 55.1 illustrates how to use this class. Screenshot instructions: Windows Mac Red Hat Linux Ubuntu Click URL instructions: Right-click on ad, choose "Copy Link", then paste here → (This may not be possible with some types of The exception is caught in main(), which writes the error code and the error category to standard error.