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authorshmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
committershmel1k <shmel1k@ydb.tech>2022-09-02 12:44:59 +0300
commit90d450f74722da7859d6f510a869f6c6908fd12f (patch)
tree538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/ilaslr.c
parent01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff)
downloadydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/ilaslr.c')
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+/* ilaslr.f -- translated by f2c (version 20061008).
+ 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 "f2c.h"
+#include "blaswrap.h"
+
+integer ilaslr_(integer *m, integer *n, real *a, integer *lda)
+{
+ /* System generated locals */
+ integer a_dim1, a_offset, ret_val, i__1;
+
+ /* Local variables */
+ integer i__, j;
+
+
+/* -- LAPACK auxiliary routine (version 3.2.1) -- */
+
+/* -- April 2009 -- */
+
+/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
+/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
+
+/* .. Scalar Arguments .. */
+/* .. */
+/* .. Array Arguments .. */
+/* .. */
+
+/* Purpose */
+/* ======= */
+
+/* ILASLR scans A for its last non-zero row. */
+
+/* Arguments */
+/* ========= */
+
+/* M (input) INTEGER */
+/* The number of rows of the matrix A. */
+
+/* N (input) INTEGER */
+/* The number of columns of the matrix A. */
+
+/* A (input) REAL array, dimension (LDA,N) */
+/* The m by n matrix A. */
+
+/* LDA (input) INTEGER */
+/* The leading dimension of the array A. LDA >= max(1,M). */
+
+/* ===================================================================== */
+
+/* .. Parameters .. */
+/* .. */
+/* .. Local Scalars .. */
+/* .. */
+/* .. Executable Statements .. */
+
+/* Quick test for the common case where one corner is non-zero. */
+ /* Parameter adjustments */
+ a_dim1 = *lda;
+ a_offset = 1 + a_dim1;
+ a -= a_offset;
+
+ /* Function Body */
+ if (*m == 0) {
+ ret_val = *m;
+ } else if (a[*m + a_dim1] != 0.f || a[*m + *n * a_dim1] != 0.f) {
+ ret_val = *m;
+ } else {
+/* Scan up each column tracking the last zero row seen. */
+ ret_val = 0;
+ i__1 = *n;
+ for (j = 1; j <= i__1; ++j) {
+ for (i__ = *m; i__ >= 1; --i__) {
+ if (a[i__ + j * a_dim1] != 0.f) {
+ break;
+ }
+ }
+ ret_val = max(ret_val,i__);
+ }
+ }
+ return ret_val;
+} /* ilaslr_ */