https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108859
Bug ID: 108859
Summary: Exception thrown by std::filesystem::copy() is wrong
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: vini.ipsmaker at gmail dot com
Target Milestone: ---
std::filesystem::filesystem_error::path1() and
std::filesystem::filesystem_error::path2() should contain the paths for the
most deeply-nested call, not the outermost call. It's discarding information
regarding the error that actually occurred.
#include <filesystem>
#include <iostream>
int main(int argc, char *argv[])
{
try {
std::filesystem::copy(std::filesystem::path{argv[1]},
std::filesystem::path{argv[2]},
std::filesystem::copy_options::recursive);
} catch (const std::filesystem::filesystem_error& e) {
std::cerr << e.what() << '\n' << e.path1() << '\n' << e.path2() <<
'\n';
}
}
If a file already exists, path1() should not be argv[1], but the file that
failed to copy. Same for path2().
