{"id":101563,"date":"2021-10-07T16:22:54","date_gmt":"2021-10-07T14:22:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-cppcheck-2-6-staticheskogo-analizatora-koda-dlya-yazykov-c-i-s"},"modified":"2021-10-07T16:22:54","modified_gmt":"2021-10-07T14:22:54","slug":"vypusk-cppcheck-2-6-staticheskogo-analizatora-koda-dlya-yazykov-c-i-s","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-cppcheck-2-6-staticheskogo-analizatora-koda-dlya-yazykov-c-i-s","title":{"rendered":"Lan\u00e7amento do cppcheck 2.6, um analisador de c\u00f3digo est\u00e1tico para as linguagens C++ e C","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Saiu a nova vers\u00e3o do analisador de c\u00f3digo est\u00e1tico cppcheck 2.6, que permite identificar diversas classes de erros no c\u00f3digo nas linguagens C e C++, incluindo ao usar sintaxe n\u00e3o padr\u00e3o t\u00edpica em sistemas embarcados. \u00c9 fornecido um conjunto de plugins que garantem a integra\u00e7\u00e3o do cppcheck com v\u00e1rios sistemas de desenvolvimento, integra\u00e7\u00e3o cont\u00ednua e testes, al\u00e9m de fornecer funcionalidades como verifica\u00e7\u00e3o da conformidade do c\u00f3digo com padr\u00f5es de estilo. Tanto um parser pr\u00f3prio quanto o parser externo do Clang podem ser usados para analisar o c\u00f3digo. Tamb\u00e9m est\u00e1 inclu\u00eddo um script donate-cpu.py para fornecer recursos locais para realizar trabalho de revis\u00e3o colaborativa do c\u00f3digo dos pacotes Debian. O c\u00f3digo-fonte do projeto \u00e9 distribu\u00eddo sob a licen\u00e7a GPLv3.      <\/p>\n<p>O desenvolvimento do cppcheck se concentra em identificar problemas relacionados ao comportamento indefinido e o uso de constru\u00e7\u00f5es que apresentam riscos de seguran\u00e7a. O objetivo tamb\u00e9m \u00e9 minimizar falsos positivos. Entre os problemas detectados est\u00e3o: ponteiros para objetos inexistentes, divis\u00f5es por zero, estouros inteiros, opera\u00e7\u00f5es incorretas de deslocamento de bits, convers\u00f5es inadequadas, problemas no gerenciamento de mem\u00f3ria, uso incorreto da STL, desreferencia\u00e7\u00e3o de ponteiros nulos, verifica\u00e7\u00f5es que ocorrem ap\u00f3s um acesso real ao buffer, estouro de buffers e uso de vari\u00e1veis n\u00e3o inicializadas.          <\/p>\n<p>  Na nova vers\u00e3o:  <\/p>\n<ul>\n<li class=\"l\"> O n\u00facleo do analisador agora inclui as seguintes verifica\u00e7\u00f5es:\n<ul>\n<li class=\"l\"> aus\u00eancia do operador return no corpo da fun\u00e7\u00e3o;\n<li class=\"l\"> grava\u00e7\u00e3o de dados sobrepostos, determina\u00e7\u00e3o de comportamento indefinido;\n<li class=\"l\"> valor compar\u00e1vel est\u00e1 fora do intervalo de valores do tipo;\n<li class=\"l\"> a otimiza\u00e7\u00e3o de c\u00f3pia n\u00e3o \u00e9 aplicada para return std::move(local);\n<li class=\"l\"> o arquivo n\u00e3o pode ser aberto simultaneamente para leitura e escrita em diferentes fluxos (stream);  <\/ul>\n<li class=\"l\"> para plataformas Unix, foi adicionada a suporte \u00e0 sa\u00edda de mensagens de diagn\u00f3stico em cores diferentes;\n<li class=\"l\"> adicionado an\u00e1lise simb\u00f3lica para ValueFlow. Uma simples delta \u00e9 utilizada ao calcular diferen\u00e7as entre duas vari\u00e1veis desconhecidas;\n<li class=\"l\"> as regras utilizadas para a lista de tokens &#171;define&#187; tamb\u00e9m podem se aplicar a #include;\n<li class=\"l\"> A tag library  agora pode conter a tag , e, consequentemente, fun\u00e7\u00f5es livres que podem aceitar containers como std::size, std::empty, std::begin, std::end, etc., podem especificar yield ou action para os containers;\n<li class=\"l\"> a tag de biblioteca &lt;smart-pointer&gt; agora pode conter a tag &lt;unique&gt; para ponteiros inteligentes que t\u00eam posse exclusiva (unique ownership). Agora, um aviso \u00e9 emitido sobre refer\u00eancias &#171;pendentes&#187; a esse tipo de ponteiros inteligentes;\n<li class=\"l\"> corrigidos problemas com o processamento do par\u00e2metro &#8212;cppcheck-build-dir;\n<li class=\"l\"> htmlreport agora pode emitir informa\u00e7\u00f5es sobre o autor (usando git blame);\n<li class=\"l\"> A emiss\u00e3o de avisos sobre vari\u00e1veis que n\u00e3o s\u00e3o constantes, mas poderiam ser, foi ampliada;\n<li class=\"l\"> Foram corrigidos erros acumulados e problemas na an\u00e1lise.  <\/ul>\n<p>  Al\u00e9m disso, as verifica\u00e7\u00f5es do Misra C 2012 foram completamente implementadas, incluindo a Emenda 1 e a Emenda 2, exceto as regras 1.1, 1.2 e 17.3. As verifica\u00e7\u00f5es 1.1 e 1.2 devem ser realizadas pelo compilador. A verifica\u00e7\u00e3o 17.3 pode ser realizada pelo compilador, por exemplo, GCC.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=55936\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u044b\u0448\u043b\u0430 \u043d\u043e\u0432\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f \u0441\u0442\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0430\u043d\u0430\u043b\u0438\u0437\u0430\u0442\u043e\u0440\u0430 \u043a\u043e\u0434\u0430 cppcheck 2.6, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0432\u044b\u044f\u0432\u043b\u044f\u0442\u044c \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0435 \u043a\u043b\u0430\u0441\u0441\u044b \u043e\u0448\u0438\u0431\u043e\u043a \u0432 \u043a\u043e\u0434\u0435 \u043d\u0430 \u044f\u0437\u044b\u043a\u0430\u0445 \u0421\u0438 \u0438 \u0421\u0438++, \u0432 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