INTEGER FUNCTION ILAPREC( PREC ) * * -- LAPACK routine (version 3.2.2) -- * * -- June 2010 -- * * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- * * .. Scalar Arguments .. CHARACTER PREC * .. * * Purpose * ======= * * This subroutine translated from a character string specifying an * intermediate precision to the relevant BLAST-specified integer * constant. * * ILAPREC returns an INTEGER. If ILAPREC < 0, then the input is not a * character indicating a supported intermediate precision. Otherwise * ILAPREC returns the constant value corresponding to PREC. * * Arguments * ========= * PREC (input) CHARACTER * Specifies the form of the system of equations: * = 'S': Single * = 'D': Double * = 'I': Indigenous * = 'X', 'E': Extra * ===================================================================== * * .. Parameters .. INTEGER BLAS_PREC_SINGLE, BLAS_PREC_DOUBLE, BLAS_PREC_INDIGENOUS, $ BLAS_PREC_EXTRA PARAMETER ( BLAS_PREC_SINGLE = 211, BLAS_PREC_DOUBLE = 212, $ BLAS_PREC_INDIGENOUS = 213, BLAS_PREC_EXTRA = 214 ) * .. * .. External Functions .. LOGICAL LSAME EXTERNAL LSAME * .. * .. Executable Statements .. IF( LSAME( PREC, 'S' ) ) THEN ILAPREC = BLAS_PREC_SINGLE ELSE IF( LSAME( PREC, 'D' ) ) THEN ILAPREC = BLAS_PREC_DOUBLE ELSE IF( LSAME( PREC, 'I' ) ) THEN ILAPREC = BLAS_PREC_INDIGENOUS ELSE IF( LSAME( PREC, 'X' ) .OR. LSAME( PREC, 'E' ) ) THEN ILAPREC = BLAS_PREC_EXTRA ELSE ILAPREC = -1 END IF RETURN * * End of ILAPREC * END