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CFileException Class

Represents a file-related exception condition.

class CFileException : public CException

Name

Description

CFileException::CFileException

Constructs a CFileException object.

Name

Description

CFileException::ErrnoToException

Returns cause code corresponding to a run-time error number.

CFileException::GetErrorMessage

Retrieves the message describing an exception.

CFileException::OsErrorToException

Returns a cause code corresponding to an operating system error code.

CFileException::ThrowErrno

Throws a file exception based on a runtime error number.

CFileException::ThrowOsError

Throws a file exception based on an operating system error number.

Name

Description

CFileException::m_cause

Contains portable code corresponding to the exception cause.

CFileException::m_lOsError

Contains the related operating-system error number.

CFileException::m_strFileName

Contains the name of the file for this exception.

The CFileException class includes public data members that hold the portable cause code and the operating-system-specific error number. The class also provides static member functions for throwing file exceptions and for returning cause codes for both operating-system errors and C run-time errors.

CFileException objects are constructed and thrown in CFile member functions and in member functions of derived classes. You can access these objects within the scope of a CATCH expression. For portability, use only the cause code to get the reason for an exception. For more information about exceptions, see the article Exception Handling (MFC).

Header: afx.h

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