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/* lsame.f -- translated by f2c (version 20100827).
You must link the resulting object file with libf2c:
on Microsoft Windows system, link with libf2c.lib;
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
or, if you install libf2c.a in a standard place, with -lf2c -lm
-- in that order, at the end of the command line, as in
cc *.o -lf2c -lm
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
http://www.netlib.org/f2c/libf2c.zip
*/
#include "datatypes.h"
logical lsame_(char *ca, char *cb, ftnlen ca_len, ftnlen cb_len)
{
/* System generated locals */
logical ret_val;
/* Local variables */
integer inta, intb, zcode;
/* -- LAPACK auxiliary routine (version 3.1) -- */
/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/* November 2006 */
/* .. Scalar Arguments .. */
/* .. */
/* Purpose */
/* ======= */
/* LSAME returns .TRUE. if CA is the same letter as CB regardless of */
/* case. */
/* Arguments */
/* ========= */
/* CA (input) CHARACTER*1 */
/* CB (input) CHARACTER*1 */
/* CA and CB specify the single characters to be compared. */
/* ===================================================================== */
/* .. Intrinsic Functions .. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* Test if the characters are equal */
ret_val = *(unsigned char *)ca == *(unsigned char *)cb;
if (ret_val) {
return ret_val;
}
/* Now test for equivalence if both characters are alphabetic. */
zcode = 'Z';
/* Use 'Z' rather than 'A' so that ASCII can be detected on Prime */
/* machines, on which ICHAR returns a value with bit 8 set. */
/* ICHAR('A') on Prime machines returns 193 which is the same as */
/* ICHAR('A') on an EBCDIC machine. */
inta = *(unsigned char *)ca;
intb = *(unsigned char *)cb;
if (zcode == 90 || zcode == 122) {
/* ASCII is assumed - ZCODE is the ASCII code of either lower or */
/* upper case 'Z'. */
if (inta >= 97 && inta <= 122) {
inta += -32;
}
if (intb >= 97 && intb <= 122) {
intb += -32;
}
} else if (zcode == 233 || zcode == 169) {
/* EBCDIC is assumed - ZCODE is the EBCDIC code of either lower or */
/* upper case 'Z'. */
if ((inta >= 129 && inta <= 137) || (inta >= 145 && inta <= 153) ||
(inta >= 162 && inta <= 169)) {
inta += 64;
}
if ((intb >= 129 && intb <= 137) || (intb >= 145 && intb <= 153) ||
(intb >= 162 && intb <= 169)) {
intb += 64;
}
} else if (zcode == 218 || zcode == 250) {
/* ASCII is assumed, on Prime machines - ZCODE is the ASCII code */
/* plus 128 of either lower or upper case 'Z'. */
if (inta >= 225 && inta <= 250) {
inta += -32;
}
if (intb >= 225 && intb <= 250) {
intb += -32;
}
}
ret_val = inta == intb;
/* RETURN */
/* End of LSAME */
return ret_val;
} /* lsame_ */
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