cross-platform從std :: fstream

cross-platform檢索*許多C庫接受std :: fstream對象，而特定的C庫函數需要文件*。 This poses a challenge when attempting to use these libraries together.

The primary reason for seeking a conversion from std::fstream to FILE* is the lack of cross-platform support for an natively available solution.

沒有直接的方法來從std :: fstream對像中提取文件句柄。 This is because the implementation of std::fstream is not standardized to use FILE, leaving it at the discretion of the underlying implementation.

Alternatives to Conversion

As a result, it is not recommended to attempt a conversion between std::fstream and FILE*.相反，請考慮以下替代方案： 使用C包裝器函數：

考慮funopen（）（non-posix）：

通過使用這些替代方案，您可以避免std :: fstream實現的限制，並與需要文件* handles* handles* handles的c庫無縫互動。