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xerbla.f
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1996-09-28
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1KB
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46 lines
SUBROUTINE XERBLA ( SRNAME, INFO )
* .. Scalar Arguments ..
INTEGER INFO
CHARACTER*6 SRNAME
* ..
*
* Purpose
* =======
*
* XERBLA is an error handler for the Level 2 BLAS routines.
*
* It is called by the Level 2 BLAS routines if an input parameter is
* invalid.
*
* Installers should consider modifying the STOP statement in order to
* call system-specific exception-handling facilities.
*
* Parameters
* ==========
*
* SRNAME - CHARACTER*6.
* On entry, SRNAME specifies the name of the routine which
* called XERBLA.
*
* INFO - INTEGER.
* On entry, INFO specifies the position of the invalid
* parameter in the parameter-list of the calling routine.
*
*
* Auxiliary routine for Level 2 Blas.
*
* Written on 20-July-1986.
*
* .. Executable Statements ..
*
WRITE (*,99999) SRNAME, INFO
*
CALL XSTOPX (' ')
*
99999 FORMAT ( ' ** On entry to ', A6, ' parameter number ', I2,
$ ' had an illegal value' )
*
* End of XERBLA.
*
END