IntelliSense Visual Studio 2010 SP1 unique

IntelliSense Visual Studio 2010 SP1 unique_ptr：unique_ptr >> T(IntelliSense Visual Studio 2010 SP1 unique_ptr : unique_ptr>> T)

我搜索了一下，看看我是否找到了解决这个问题的方法，但我无法看到答案。 我遇到的问题是在我的代码编译时，我没有得到intellisense

如果我正在使用模板T接收参数（或声明变量），例如：

unique_ptr<vector<unique_ptr<T>>> & dataSets;

intellisense找到dataSets.get（）但它找不到dataSets.get（） - > clear（）; 但是，如果我这样做，它会编译好。 但是，如果它不是模板，它似乎工作正常。

码：

template <typename T> void mtsql::MTMySQL<T>::executePrepareStatement(const string & sqlText,const unique_ptr<vector<SQLDataType>> & argList,unique_ptr<vector<unique_ptr<T>>> & dataSets) { dataSets.get()->clear(); unique_ptr<sql::ResultSet> rs; for (auto iter = argList->cbegin(); iter != argList->cend() ; ++iter) { auto ps = this->createPreparedStatment(sqlText,args); rs.reset(ps->execute()); dataSets.get()->insert(std::move(rs)); ps.release(); } }

我是c ++ 11的新手，所以我可能会做一些可能错误的额外步骤或步骤（例如，我认为不需要ps.release（）...我的意思是删除它，但是因为它是一个智能点）

谢谢您的帮助！

编辑1：感谢帮助，我的代码看起来更好，没有可能的泄漏。 谢谢！

dataSets->clear(); for (auto iter = argList->cbegin(); iter != argList->cend() ; ++iter) { auto ps = this->createPreparedStatment(sqlText,args); dataSets->push_back(std::move(rs)); }

I searched to see if I find a solution to this problem but I was not able to see an answer. The problem that I'm having is while my code compiles, I don't get intellisense

if I'm receiving a parameter (or declaring a variable) such as this with template T :

unique_ptr<vector<unique_ptr<T>>> & dataSets;

intellisense finds dataSets.get() but it does not find dataSets.get()->clear(); however, it compiles fine if I do it. However, if it not a template, it seems to work fine.

CODE:

template <typename T> void mtsql::MTMySQL<T>::executePrepareStatement(const string & sqlText,const unique_ptr<vector<SQLDataType>> & argList,unique_ptr<vector<unique_ptr<T>>> & dataSets) { dataSets.get()->clear(); unique_ptr<sql::ResultSet> rs; for (auto iter = argList->cbegin(); iter != argList->cend() ; ++iter) { auto ps = this->createPreparedStatment(sqlText,args); rs.reset(ps->execute()); dataSets.get()->insert(std::move(rs)); ps.release(); } }

I'm new at c++11 so I may be doing extra steps or steps that may be wrong (for example, I think ps.release() is not needed... my point was to delete it, but since is a smart point)

Thanks for the help!

EDIT 1: Thanks to the help, my code looks much nicer and without possible leakage. Thank you!

dataSets->clear(); for (auto iter = argList->cbegin(); iter != argList->cend() ; ++iter) { auto ps = this->createPreparedStatment(sqlText,args); dataSets->push_back(std::move(rs)); }

最满意答案

C ++不是一种解析和语义的简单语言。 因此，您无法期望IntelliSense能够与复杂类型完美配合。

至于你的代码，你可以简化代码来做：

dataSets->clear(); // no need to use `get` here. for (auto& ignored : *argList) { // use range-based for. auto ps = this->createPreparedStatment(sqlText,args); dataSets->insert(ps->execute()); // no need to define 'rs'. // no need to release explicitly, if they are indeed smart pointers. }

（如果dataSets真的是unique_ptr<vector<unique_ptr<T>>>我认为你应该使用dataSets->push_back而不是insert 。）

---

编辑： MSVC 2010不支持基于范围的 。 它确实支持lambdas：

std::for_each(argList->cbegin(), argList->cend(), [&](const vector<SQLDataType>&) { auto ps = this->createPreparedStatment(sqlText,args); dataSets->insert(ps->execute()); // no need to define 'rs'. });

C++ is not a simple language to parse and semantic. Therefore you can't expect IntelliSense to work perfectly with complicated types.

As for your code, you could simplify the code to do:

dataSets->clear(); // no need to use `get` here. for (auto& ignored : *argList) { // use range-based for. auto ps = this->createPreparedStatment(sqlText,args); dataSets->insert(ps->execute()); // no need to define 'rs'. // no need to release explicitly, if they are indeed smart pointers. }

(And if dataSets is really a unique_ptr<vector<unique_ptr<T>>> I think you should use dataSets->push_back instead of insert.)

---

Edit: MSVC 2010 does not support range-based for. It does support lambdas though:

std::for_each(argList->cbegin(), argList->cend(), [&](const vector<SQLDataType>&) { auto ps = this->createPreparedStatment(sqlText,args); dataSets->insert(ps->execute()); // no need to define 'rs'. });