Error handling

Topics
	MAGMA error codes

Functions
void	magma_xerbla (const char *srname, magma_int_t neg_info)
	magma_xerbla is an error handler for the MAGMA routines.
const char *	magma_strerror (magma_int_t err)

Detailed Description

Function Documentation

magma_xerbla()

void magma_xerbla	(	const char *	srname,
		magma_int_t	neg_info )

magma_xerbla is an error handler for the MAGMA routines.

It is called by a MAGMA routine if an input parameter has an invalid value. It prints an error message.

Installers may consider modifying it to call system-specific exception-handling facilities.

Parameters

[in]	srname	CHAR* The name of the subroutine that called XERBLA. In C/C++ it is convenient to use "__func__".
[in]	neg_info	INTEGER Error code. Note neg_info's sign is opposite info's normal sign.

Normally:

• neg_info > 0: The position of the invalid parameter in the parameter list of the calling routine.

The conditions below are also reported, but normally code should not call xerbla for these runtime errors:

• neg_info < 0: Function-specific error.
• neg_info >= -MAGMA_ERR: Pre-defined MAGMA error, such as malloc failure.
• neg_info == 0: No error.

magma_strerror()

const char * magma_strerror

(

magma_int_t

err

)

Returns

String describing MAGMA errors (magma_int_t).

Parameters

[in]

err

Error code.