id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
5670,Construction from a character array leads to path with an embedded zero terminator,davidjward30@…,Beman Dawes,"Boost filesystem v3.

Demonstrated with an example:

wchar_t filename[256];

filename[0]=L'D';
filename[1]=0;
	
std::wstring s(filename);
std::cout << ""Length of s: "" << s.length() << "" ""  << std::endl;

boost::filesystem::path p2(filename);
std::cout << ""Length of p: "" << p2.native().length() << std::endl;

Displays:

Length of s: 1
Length of p: 255

When initializing a std::wstring with a character array, the embedded zero terminator is taken in to account. However, with filesystem::path, the resulting path ends up longer than expected with  an embedded zero terminator.

I would expect length of p to be 1 with the path ending at the first zero terminator.

This bug leads to all sorts of hard to find bugs as many operations seem to work fine, but calling path::filename() results in an empty string.

An obvious workaround is to do:

boost::filesystem::path p2(&filename[0]);





",Bugs,closed,To Be Determined,filesystem,Boost 1.44.0,Regression,duplicate,constructor character array,