On Thu, Jun 15, 2023 at 12:16 AM fa <fery....@gmail.com> wrote: > > I tried two methods: > > > 1. > > > void CryptoHashes::makeFileHash(const QString &filePath) > > { > > FileSource f(filePath.toStdString().c_str(), true, new HashFilter(hash, new > HexEncoder(new StringSink(digest)))); > > } > > > > 2. > > > void CryptoHashes::makeFileHash(const QString &filePath) > > { > > std::filesystem::path _path { std::filesystem::u8path(filePath.toStdString()) > }; > > std::ifstream m_file(_path, std::ios::in); > > > FileSource f(m_file, true, new HashFilter(hash, new HexEncoder(new > StringSink(digest)))); > > } > > > > the only exception is that when I tried method 2, it always calculated hash > of NULL, no matter which file I selected.
std::ifstream does not have a ctor that takes a std::filesystem::path. See https://cplusplus.com/reference/fstream/ifstream/ifstream/ . It looks like you need to do something like https://stackoverflow.com/a/45401869 . Jeff -- You received this message because you are subscribed to the Google Groups "Crypto++ Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to cryptopp-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cryptopp-users/CAH8yC8m09ompC0z8KH%3D7XFQs6nP%3D2vD8hbZpq5ZwF4Da%2BzJVCw%40mail.gmail.com.