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Questions tagged [boost-filesystem]

The Boost.Filesystem library provides facilities to manipulate files and directories, and the paths that identify them.

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Why does boost::filesystem::canonical() require the target path to exist?

The documentation for boost::filesystem::canonical(const path& p) states: Overview: Converts p, which must exist, to an absolute path that has no symbolic link, dot, or dot-dot elements. ... Remarks: !exists(p) is an error. The consequence of this…
Jeremy
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Why do boost::filesystem::path and std::filesystem::path lack operator+?

Consider the following assertions about path decomposition, where each local variable e.g. stem has the obvious initialization e.g. auto stem = path.stem() — assert(root_path == root_name / root_directory); assert(path == root_name / root_directory…
Quuxplusone
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Invalid cross-device link error with boost filesystem

I am trying to move a file from a location to another using boost::filesystem. I used boost::filesystem::rename function but when I try to do that I have the following error. terminate called after throwing an instance of…
Abruzzo Forte e Gentile
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Boost Filesystem. is_directory never works

I have been searching high and low to get this question answered, and I can't seem to debug the problem out! So, this is what I have. I have installed boost via homebrew (Mac OSX Mavericks) version 1.55.0. Other boost libraries work fine, but…
taylorcressy
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C++ Boost Filesystem: How to modify stem from a path?

I'm using the Boost Filesystem library. I have a path boost::filesystem::path P("/foo/bar.baz"); I want to modify the stem part of path p to "bar_quz", so path P stays /foo/bar_quz.baz Can someone help me? Thanks
ireallydontknow
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Directories created by boost::filesystem::create_directories() not immediately accessible?

I am using boost::filesystem::create_directories() to create new directories. When I try to access these directories shortly after creation, I get an error saying: no such directory. But if I sleep for a while after creating directories everything…
polapts
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Get an ordered list of files in a folder

I have used boost::filesystem::directory_iterator in order to get a list of all the available files into a given folder. The problem is that I supposed this method would give me the files in alphabetical order, while the results seem pretty…
Roman Rdgz
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How to determine if a file is contained by path with Boost Filesystem Library v3?

How can I determine if file is contained by path with boost filesystem v3. I saw that there is a lesser or greater operator but this seems to be only lexical. The best way I saw was the following: Take the two absolute paths of the file and the…
David Feurle
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How to compare time_t and std::filesystem::file_time_type

I'm converting some code over from boost::filesystem to std::filesystem. Previous code used boost::filesystem::last_write_time() which returns a time_t so direct comparison to a time_t object I already held was trivial. By the way, this time_t I…
PeteUK
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Getting a boost::filesystem::path as an UTF-8 encoded std::string, on Windows

We are representing paths as boost::filesystem::path, but in some cases other APIs are expecting them as const char * (e.g., to open a DB file with SQLite). From the documentation, path::value_type is a wchar_t under Windows. As far as I know,…
Ad N
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How to convert a boost::filesystem::directory_iterator to a const char *

I want to iterate over all the files in a directory and print their contents. Boost handles the iteration part very nicely but I have no idea how to conver that into a const char *. boost::filesystem::directory_iterator path_it(path); …
nikhil
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Expanding user path with boost::filesystem

Is there functionality in boost::filesystem to expand paths that begin with a user home directory symbol (~ on Unix), similar to the os.path.expanduser function provided in Python?
Daniel
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Segmentation fault in std::transform

I'm trying to transfer parsed out the file names from regex match to the list of filesystem::path objects. I believe that matches are valid because for_each for the same iterators and print to console work perfectly. However, I'm getting a…
amigo421
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Read/Write file with unicode file name with plain C++/Boost

I want to read / write a file with a unicode file name using boost filesystem, boost locale on Windows (mingw) (should be platform independent at the end). This is my code: #include #define BOOST_NO_CXX11_SCOPED_ENUMS #include…
Mike M
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boost::filesystem::path and fopen()

I get error when I try to do this: path p = "somepath"; FILE* file = fopen(p.c_str(), "r"); I get: argument of type "const boost::filesystem::path::value_type *" is incompatible with parameter of type "const char *" Could anyone tell me what I'm…
Martin
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