1 /* lsame.f -- translated by f2c (version 20100827).
2 You must link the resulting object file with libf2c:
3 on Microsoft Windows system, link with libf2c.lib;
4 on Linux or Unix systems, link with .../path/to/libf2c.a -lm
5 or, if you install libf2c.a in a standard place, with -lf2c -lm
6 -- in that order, at the end of the command line, as in
7 cc *.o -lf2c -lm
8 Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
9
10 http://www.netlib.org/f2c/libf2c.zip
11 */
12
13 #include "datatypes.h"
14
lsame_(char * ca,char * cb,ftnlen ca_len,ftnlen cb_len)15 logical lsame_(char *ca, char *cb, ftnlen ca_len, ftnlen cb_len)
16 {
17 /* System generated locals */
18 logical ret_val;
19
20 /* Local variables */
21 integer inta, intb, zcode;
22
23
24 /* -- LAPACK auxiliary routine (version 3.1) -- */
25 /* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
26 /* November 2006 */
27
28 /* .. Scalar Arguments .. */
29 /* .. */
30
31 /* Purpose */
32 /* ======= */
33
34 /* LSAME returns .TRUE. if CA is the same letter as CB regardless of */
35 /* case. */
36
37 /* Arguments */
38 /* ========= */
39
40 /* CA (input) CHARACTER*1 */
41
42 /* CB (input) CHARACTER*1 */
43 /* CA and CB specify the single characters to be compared. */
44
45 /* ===================================================================== */
46
47 /* .. Intrinsic Functions .. */
48 /* .. */
49 /* .. Local Scalars .. */
50 /* .. */
51
52 /* Test if the characters are equal */
53
54 ret_val = *(unsigned char *)ca == *(unsigned char *)cb;
55 if (ret_val) {
56 return ret_val;
57 }
58
59 /* Now test for equivalence if both characters are alphabetic. */
60
61 zcode = 'Z';
62
63 /* Use 'Z' rather than 'A' so that ASCII can be detected on Prime */
64 /* machines, on which ICHAR returns a value with bit 8 set. */
65 /* ICHAR('A') on Prime machines returns 193 which is the same as */
66 /* ICHAR('A') on an EBCDIC machine. */
67
68 inta = *(unsigned char *)ca;
69 intb = *(unsigned char *)cb;
70
71 if (zcode == 90 || zcode == 122) {
72
73 /* ASCII is assumed - ZCODE is the ASCII code of either lower or */
74 /* upper case 'Z'. */
75
76 if (inta >= 97 && inta <= 122) {
77 inta += -32;
78 }
79 if (intb >= 97 && intb <= 122) {
80 intb += -32;
81 }
82
83 } else if (zcode == 233 || zcode == 169) {
84
85 /* EBCDIC is assumed - ZCODE is the EBCDIC code of either lower or */
86 /* upper case 'Z'. */
87
88 if ((inta >= 129 && inta <= 137) || (inta >= 145 && inta <= 153) ||
89 (inta >= 162 && inta <= 169)) {
90 inta += 64;
91 }
92 if ((intb >= 129 && intb <= 137) || (intb >= 145 && intb <= 153) ||
93 (intb >= 162 && intb <= 169)) {
94 intb += 64;
95 }
96
97 } else if (zcode == 218 || zcode == 250) {
98
99 /* ASCII is assumed, on Prime machines - ZCODE is the ASCII code */
100 /* plus 128 of either lower or upper case 'Z'. */
101
102 if (inta >= 225 && inta <= 250) {
103 inta += -32;
104 }
105 if (intb >= 225 && intb <= 250) {
106 intb += -32;
107 }
108 }
109 ret_val = inta == intb;
110
111 /* RETURN */
112
113 /* End of LSAME */
114
115 return ret_val;
116 } /* lsame_ */
117
118