LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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lsamen.f
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1*> \brief \b LSAMEN
2*
3* =========== DOCUMENTATION ===========
4*
5* Online html documentation available at
6* http://www.netlib.org/lapack/explore-html/
7*
8*> \htmlonly
10*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/lsamen.f">
11*> [TGZ]</a>
12*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/lsamen.f">
13*> [ZIP]</a>
14*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/lsamen.f">
15*> [TXT]</a>
16*> \endhtmlonly
17*
18* Definition:
19* ===========
20*
21* LOGICAL FUNCTION LSAMEN( N, CA, CB )
22*
23* .. Scalar Arguments ..
24* CHARACTER*( * ) CA, CB
25* INTEGER N
26* ..
27*
28*
29*> \par Purpose:
30* =============
31*>
32*> \verbatim
33*>
34*> LSAMEN tests if the first N letters of CA are the same as the
35*> first N letters of CB, regardless of case.
36*> LSAMEN returns .TRUE. if CA and CB are equivalent except for case
37*> and .FALSE. otherwise. LSAMEN also returns .FALSE. if LEN( CA )
38*> or LEN( CB ) is less than N.
39*> \endverbatim
40*
41* Arguments:
42* ==========
43*
44*> \param[in] N
45*> \verbatim
46*> N is INTEGER
47*> The number of characters in CA and CB to be compared.
48*> \endverbatim
49*>
50*> \param[in] CA
51*> \verbatim
52*> CA is CHARACTER*(*)
53*> \endverbatim
54*>
55*> \param[in] CB
56*> \verbatim
57*> CB is CHARACTER*(*)
58*> CA and CB specify two character strings of length at least N.
59*> Only the first N characters of each string will be accessed.
60*> \endverbatim
61*
62* Authors:
63* ========
64*
65*> \author Univ. of Tennessee
66*> \author Univ. of California Berkeley
67*> \author Univ. of Colorado Denver
68*> \author NAG Ltd.
69*
70*> \ingroup OTHERauxiliary
71*
72* =====================================================================
73 LOGICAL FUNCTION lsamen( N, CA, CB )
74*
75* -- LAPACK auxiliary routine --
76* -- LAPACK is a software package provided by Univ. of Tennessee, --
77* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
78*
79* .. Scalar Arguments ..
80 CHARACTER*( * ) ca, cb
81 INTEGER n
82* ..
83*
84* =====================================================================
85*
86* .. Local Scalars ..
87 INTEGER i
88* ..
89* .. External Functions ..
90 LOGICAL lsame
91 EXTERNAL lsame
92* ..
93* .. Intrinsic Functions ..
94 INTRINSIC len
95* ..
96* .. Executable Statements ..
97*
98 lsamen = .false.
99 IF( len( ca ).LT.n .OR. len( cb ).LT.n )
100 \$ GO TO 20
101*
102* Do for each character in the two strings.
103*
104 DO 10 i = 1, n
105*
106* Test if the characters are equal using LSAME.
107*
108 IF( .NOT.lsame( ca( i: i ), cb( i: i ) ) )
109 \$ GO TO 20
110*
111 10 CONTINUE
112 lsamen = .true.
113*
114 20 CONTINUE
115 RETURN
116*
117* End of LSAMEN
118*
119 END
logical function lsamen(N, CA, CB)
LSAMEN
Definition: lsamen.f:74
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:53