Dv::Util::SystemError Class Reference

Exception class associated with a system error. More...

#include <systemerror.h>

List of all members.

Public Member Functions
	SystemError (int error_code=0)
	Construct new runtime_error exception.
	SystemError (const std::string &message, int error_code=0)
	Construct new runtime_error exception.
int	err_no () const
Static Public Member Functions
static std::string	strerror (int err=0)
Private Attributes
int	errno_

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Detailed Description

Exception class associated with a system error.

Derived from runtime_error.

Example:

 if (fork() == -1)
   throw SystemError();
 if (execl(..) == -1)
    throw SystemError("execl failed");   
 if (kill(..,..) == -1) {
   int e = errno;
   throw SystemError(e);
   }

Definition at line 27 of file systemerror.h.

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Constructor & Destructor Documentation

Dv::Util::SystemError::SystemError

(

int

error_code = 0

)

Construct new runtime_error exception.

this->what() will contain NAME + error_code + system error message obtained using strerror(error_code)

Parameters:

error_code

system error code, should be valid input for strerror. If 0, the global :errno will be used instead.

Dv::Util::SystemError::SystemError	(	const std::string &	message,
		int	error_code = 0
	)

Construct new runtime_error exception.

this->what() will contain message + error_code + system error message obtained using strerror(error_code)

Parameters:

	message	will be used instead of NAME (see above)
	error_code	system error code, should be valid input for strerror. If 0, the global :errno will be used instead.

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Member Function Documentation

int Dv::Util::SystemError::err_no

(

)

const [inline]

Returns:

error code of this SystemError

Warning:

This function is not called errno() because <string.h> defines errno as a macro.

Definition at line 56 of file systemerror.h.

References errno_.

static std::string Dv::Util::SystemError::strerror

(

int

err = 0

)

[static]

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Member Data Documentation

int Dv::Util::SystemError::errno_ [private]

Definition at line 59 of file systemerror.h.

Referenced by err_no().

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The documentation for this class was generated from the following file:

• systemerror.h