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author | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
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committer | shmel1k <shmel1k@ydb.tech> | 2022-09-02 12:44:59 +0300 |
commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/dtrttp.c | |
parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
download | ydb-90d450f74722da7859d6f510a869f6c6908fd12f.tar.gz |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/dtrttp.c')
-rw-r--r-- | contrib/libs/clapack/dtrttp.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/contrib/libs/clapack/dtrttp.c b/contrib/libs/clapack/dtrttp.c new file mode 100644 index 0000000000..1af49f1404 --- /dev/null +++ b/contrib/libs/clapack/dtrttp.c @@ -0,0 +1,144 @@ +/* dtrttp.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" + +/* Subroutine */ int dtrttp_(char *uplo, integer *n, doublereal *a, integer * + lda, doublereal *ap, integer *info) +{ + /* System generated locals */ + integer a_dim1, a_offset, i__1, i__2; + + /* Local variables */ + integer i__, j, k; + extern logical lsame_(char *, char *); + logical lower; + extern /* Subroutine */ int xerbla_(char *, integer *); + + +/* -- LAPACK routine (version 3.2) -- */ +/* -- Contributed by Fred Gustavson of the IBM Watson Research Center -- */ +/* -- and Julien Langou of the Univ. of Colorado Denver -- */ +/* -- November 2008 -- */ + +/* -- 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 */ +/* ======= */ + +/* DTRTTP copies a triangular matrix A from full format (TR) to standard */ +/* packed format (TP). */ + +/* Arguments */ +/* ========= */ + +/* UPLO (input) CHARACTER */ +/* = 'U': A is upper triangular. */ +/* = 'L': A is lower triangular. */ + +/* N (input) INTEGER */ +/* The order of the matrices AP and A. N >= 0. */ + +/* A (input) DOUBLE PRECISION array, dimension (LDA,N) */ +/* On exit, the triangular matrix A. If UPLO = 'U', the leading */ +/* N-by-N upper triangular part of A contains the upper */ +/* triangular part of the matrix A, and the strictly lower */ +/* triangular part of A is not referenced. If UPLO = 'L', the */ +/* leading N-by-N lower triangular part of A contains the lower */ +/* triangular part of the matrix A, and the strictly upper */ +/* triangular part of A is not referenced. */ + +/* LDA (input) INTEGER */ +/* The leading dimension of the array A. LDA >= max(1,N). */ + +/* AP (output) DOUBLE PRECISION array, dimension (N*(N+1)/2 */ +/* On exit, the upper or lower triangular matrix A, packed */ +/* columnwise in a linear array. The j-th column of A is stored */ +/* in the array AP as follows: */ +/* if UPLO = 'U', AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; */ +/* if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = A(i,j) for j<=i<=n. */ + +/* INFO (output) INTEGER */ +/* = 0: successful exit */ +/* < 0: if INFO = -i, the i-th argument had an illegal value */ + +/* ===================================================================== */ + +/* .. Parameters .. */ +/* .. */ +/* .. Local Scalars .. */ +/* .. */ +/* .. External Functions .. */ +/* .. */ +/* .. External Subroutines .. */ +/* .. */ +/* .. Executable Statements .. */ + +/* Test the input parameters. */ + + /* Parameter adjustments */ + a_dim1 = *lda; + a_offset = 1 + a_dim1; + a -= a_offset; + --ap; + + /* Function Body */ + *info = 0; + lower = lsame_(uplo, "L"); + if (! lower && ! lsame_(uplo, "U")) { + *info = -1; + } else if (*n < 0) { + *info = -2; + } else if (*lda < max(1,*n)) { + *info = -4; + } + if (*info != 0) { + i__1 = -(*info); + xerbla_("DTRTTP", &i__1); + return 0; + } + + if (lower) { + k = 0; + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = *n; + for (i__ = j; i__ <= i__2; ++i__) { + ++k; + ap[k] = a[i__ + j * a_dim1]; + } + } + } else { + k = 0; + i__1 = *n; + for (j = 1; j <= i__1; ++j) { + i__2 = j; + for (i__ = 1; i__ <= i__2; ++i__) { + ++k; + ap[k] = a[i__ + j * a_dim1]; + } + } + } + + + return 0; + +/* End of DTRTTP */ + +} /* dtrttp_ */ |