/usr/share/doc/libsuperlu-dev/tests/MATGEN/cdotc.c is in libsuperlu3-dev 3.0+20070106-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | /* -- translated by f2c (version 19940927).
You must link the resulting object file with the libraries:
-lf2c -lm (in that order)
*/
#include "f2c.h"
/* Complex */ VOID cdotc_(complex * ret_val, integer *n, complex *cx, integer
*incx, complex *cy, integer *incy)
{
/* System generated locals */
integer i__1, i__2;
complex q__1, q__2, q__3;
/* Builtin functions */
void r_cnjg(complex *, complex *);
/* Local variables */
static integer i;
static complex ctemp;
static integer ix, iy;
/* forms the dot product of two vectors, conjugating the first
vector.
jack dongarra, linpack, 3/11/78.
modified 12/3/93, array(1) declarations changed to array(*)
Parameter adjustments */
--cy;
--cx;
/* Function Body */
ctemp.r = 0.f, ctemp.i = 0.f;
ret_val->r = 0.f, ret_val->i = 0.f;
if (*n <= 0) {
return ;
}
if (*incx == 1 && *incy == 1) {
goto L20;
}
/* code for unequal increments or equal increments
not equal to 1 */
ix = 1;
iy = 1;
if (*incx < 0) {
ix = (-(*n) + 1) * *incx + 1;
}
if (*incy < 0) {
iy = (-(*n) + 1) * *incy + 1;
}
i__1 = *n;
for (i = 1; i <= *n; ++i) {
r_cnjg(&q__3, &cx[ix]);
i__2 = iy;
q__2.r = q__3.r * cy[iy].r - q__3.i * cy[iy].i, q__2.i = q__3.r *
cy[iy].i + q__3.i * cy[iy].r;
q__1.r = ctemp.r + q__2.r, q__1.i = ctemp.i + q__2.i;
ctemp.r = q__1.r, ctemp.i = q__1.i;
ix += *incx;
iy += *incy;
/* L10: */
}
ret_val->r = ctemp.r, ret_val->i = ctemp.i;
return ;
/* code for both increments equal to 1 */
L20:
i__1 = *n;
for (i = 1; i <= *n; ++i) {
r_cnjg(&q__3, &cx[i]);
i__2 = i;
q__2.r = q__3.r * cy[i].r - q__3.i * cy[i].i, q__2.i = q__3.r *
cy[i].i + q__3.i * cy[i].r;
q__1.r = ctemp.r + q__2.r, q__1.i = ctemp.i + q__2.i;
ctemp.r = q__1.r, ctemp.i = q__1.i;
/* L30: */
}
ret_val->r = ctemp.r, ret_val->i = ctemp.i;
return ;
} /* cdotc_ */
|