replace_extension truncates path

[cheesy4poofs@…]

I've recently switched all our code to filesystem v3 and added BOOST_FILESYSTEM_NO_DEPRECATE on our builds for good measure. One of the changes I had to fix was our use of change_extension(), which was modified to use the replace_extension() method. However, some of our code started failing and I tracked it down to this example:

boost::filesystem::path p("C:
database
test
filename"); p.replace_extension(".db"); std::cout << p.string() << std::endl; OUTPUT - C:\database\test\filename.db

p = "C:
database.1
test
filename"; p.replace_extension(".db"); bug? std::cout << p.string() << std::endl; OUTPUT - C:\database.db

As you can see, in the second example, it truncates the path and assumes the directory name "database.1" has the extension that needs replacing. change_extension() did not behave this way.

Is this the expected behavior?

[anonymous]

Apparently, it didn't like the backslashes, let me try the examples again:

boost::filesystem::path p("/database/test/filename"); p.replace_extension(".db"); std::cout << p.string() << std::endl; OUTPUT - /database/test/filename.db

p = "/database.1/test/filename"; p.replace_extension(".db"); bug? std::cout << p.string() << std::endl; OUTPUT - /database.db

[Beman Dawes]

(In [65748]) Fix #4702