https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106028
Bug ID: 106028
Summary: std::filesystem::path lacks conversion to native mbs
Product: gcc
Version: 12.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: goughostt at gmail dot com
Target Milestone: ---
The following assumes c++17 std.
With Windows (mingw): a path can be build with UTF-8 (`u8path`) or native mbs
(`path(const char*)`) and converted to UTF-8 string (`path.string()` and
`path.u8string()`).
It seems impossible to get a native mbs string back (easily).
I suggest `path.string()` to return the native mbs string instead.
That allows one to `printf` the path in Windows.
Otherwise, I cannot find an easy way (without explicit encoding conversion) for
a mingw cross-compiled binary to print paths to the Cmd console.
As I understand, the suggested change conforms to the standard.
And developers also noted this in the code (XXX):
if (__str_codecvt_out_all(__wfirst, __wlast, __u8str, __cvt)) {
if constexpr (is_same_v<_CharT, char>)
return __u8str; // XXX assumes native ordinary encoding is UTF-8.
else {
