3 * =========== DOCUMENTATION ===========
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
11 * LOGICAL FUNCTION LSAME( CA, CB )
13 * .. Scalar Arguments ..
23 *> LSAME returns .TRUE. if CA is the same letter as CB regardless of
36 *> CA and CB specify the single characters to be compared.
42 *> \author Univ. of Tennessee
43 *> \author Univ. of California Berkeley
44 *> \author Univ. of Colorado Denver
47 *> \date November 2011
49 *> \ingroup auxOTHERauxiliary
51 * =====================================================================
52 LOGICAL FUNCTION LSAME( CA, CB )
54 * -- LAPACK auxiliary routine (version 3.4.0) --
55 * -- LAPACK is a software package provided by Univ. of Tennessee, --
56 * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
59 * .. Scalar Arguments ..
63 * =====================================================================
65 * .. Intrinsic Functions ..
69 INTEGER INTA, INTB, ZCODE
71 * .. Executable Statements ..
73 * Test if the characters are equal
79 * Now test for equivalence if both characters are alphabetic.
83 * Use 'Z' rather than 'A' so that ASCII can be detected on Prime
84 * machines, on which ICHAR returns a value with bit 8 set.
85 * ICHAR('A') on Prime machines returns 193 which is the same as
86 * ICHAR('A') on an EBCDIC machine.
91 IF( ZCODE.EQ.90 .OR. ZCODE.EQ.122 ) THEN
93 * ASCII is assumed - ZCODE is the ASCII code of either lower or
96 IF( INTA.GE.97 .AND. INTA.LE.122 ) INTA = INTA - 32
97 IF( INTB.GE.97 .AND. INTB.LE.122 ) INTB = INTB - 32
99 ELSE IF( ZCODE.EQ.233 .OR. ZCODE.EQ.169 ) THEN
101 * EBCDIC is assumed - ZCODE is the EBCDIC code of either lower or
104 IF( INTA.GE.129 .AND. INTA.LE.137 .OR.
105 $ INTA.GE.145 .AND. INTA.LE.153 .OR.
106 $ INTA.GE.162 .AND. INTA.LE.169 ) INTA = INTA + 64
107 IF( INTB.GE.129 .AND. INTB.LE.137 .OR.
108 $ INTB.GE.145 .AND. INTB.LE.153 .OR.
109 $ INTB.GE.162 .AND. INTB.LE.169 ) INTB = INTB + 64
111 ELSE IF( ZCODE.EQ.218 .OR. ZCODE.EQ.250 ) THEN
113 * ASCII is assumed, on Prime machines - ZCODE is the ASCII code
114 * plus 128 of either lower or upper case 'Z'.
116 IF( INTA.GE.225 .AND. INTA.LE.250 ) INTA = INTA - 32
117 IF( INTB.GE.225 .AND. INTB.LE.250 ) INTB = INTB - 32