C++ 如何将提升路径类型转换为字符串？
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How to convert boost path type to string?
提问by Johnston
Hello I currently have a program that gets a full path of a file's location and is put into a variable that is the type of: boost::filesystem2::path
您好，我目前有一个程序可以获取文件位置的完整路径，并将其放入类型为：boost::filesystem2::path 的变量中
I have looked up how to do this and have found that using:
我查了一下如何做到这一点，并发现使用：
string result1 = boost::filesystem::basename (myPath)
will convert the path to string BUT it only converts the file name (e.g. if the path is "C:\name\bobsAwesomeWordDoc.docx" it just returns "bobsAwesomeWordDoc").
将路径转换为字符串但它只转换文件名（例如，如果路径是“C:\name\bobsAwesomeWordDoc.docx”，它只返回“bobsAwesomeWordDoc”）。
I have found the following on how to convert the entire path to string, but I don't know how to implement it in my program. I have tried multiple ways but I am getting conversion errors.
我发现了以下关于如何将整个路径转换为字符串的内容，但我不知道如何在我的程序中实现它。我尝试了多种方法，但出现转换错误。
const std::string& string( ): This routine returns a copy of the string with which the path was initialized, with formatting per the path grammar rules.
const std::string& string()：此例程返回初始化路径的字符串的副本，并根据路径语法规则进行格式化。
(found here)
（在这里找到）
I have tried:
我试过了：
string result1 = string& (myPath);
and a few other variations.
以及其他一些变体。
回答by icecrime
You just need to call myPath.string().
你只需要调用myPath.string().
回答by resigned
I believe you need to do a little more than just convert the path to a string - you should first obtain the canonical version of the path - an absolute path with no symbolic-link elements - and convert thatinto a string:
我相信你需要做的多一点，只是路径转换为字符串-你应该首先获得该路径的规范版本-无符号链接元素的绝对路径-并转换是为一个字符串：
boost::filesystem::canonical(myPath).string();
P.S. - I've been programming with Boost for ages and I couldn't easily find this info in the docs.
PS - 我已经用 Boost 编程了很长时间，我无法在文档中轻松找到此信息。
Update (Oct 2017)
更新（2017 年 10 月）
Documentation: boost::filesystem::canonical.
文档：boost::filesystem::canonical。
But note that as of C++17 there is std::filesystem, with canonicaland a lot more.
但请注意，从 C++17 开始，有std::filesystem、规范等等。
回答by Paddy
This worked in wxWidgets: (I know I should just use the wx utilities but it is a test)
这在 wxWidgets 中有效：（我知道我应该只使用 wx 实用程序，但这是一个测试）
void WxWidgetsBoostTestFrame::OnTestBtnClick(wxCommandEvent& event)
{
boost::filesystem::path currentPath;
currentPath = boost::filesystem::current_path();
std::string curDirString;
curDirString = boost::filesystem::canonical(currentPath).string();
wxString mystring(curDirString.c_str(), wxConvUTF8);
wxMessageBox(mystring); // output: C:/Users\client\Desktop...
}
回答by J.Adler
Calling myPath.generic_string()will do what you need.
打电话myPath.generic_string()会做你需要的。
回答by Calorified
Do this
做这个
path.c_str();
path.c_str();
You should be fine.
你应该没事。
