diff options
| author | shmel1k <[email protected]> | 2022-09-02 12:44:59 +0300 | 
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| committer | shmel1k <[email protected]> | 2022-09-02 12:44:59 +0300 | 
| commit | 90d450f74722da7859d6f510a869f6c6908fd12f (patch) | |
| tree | 538c718dedc76cdfe37ad6d01ff250dd930d9278 /contrib/libs/clapack/dtpttr.c | |
| parent | 01f64c1ecd0d4ffa9e3a74478335f1745f26cc75 (diff) | |
[] add metering mode to CLI
Diffstat (limited to 'contrib/libs/clapack/dtpttr.c')
| -rw-r--r-- | contrib/libs/clapack/dtpttr.c | 144 | 
1 files changed, 144 insertions, 0 deletions
diff --git a/contrib/libs/clapack/dtpttr.c b/contrib/libs/clapack/dtpttr.c new file mode 100644 index 00000000000..d08841b8c1c --- /dev/null +++ b/contrib/libs/clapack/dtpttr.c @@ -0,0 +1,144 @@ +/* dtpttr.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 dtpttr_(char *uplo, integer *n, doublereal *ap,  +	doublereal *a, integer *lda, 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 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 */ +/*  ======= */ + +/*  DTPTTR copies a triangular matrix A from standard packed format (TP) */ +/*  to standard full format (TR). */ + +/*  Arguments */ +/*  ========= */ + +/*  UPLO    (input) CHARACTER */ +/*          = 'U':  A is upper triangular. */ +/*          = 'L':  A is lower triangular. */ + +/*  N       (input) INTEGER */ +/*          The order of the matrix A. N >= 0. */ + +/*  AP      (input) DOUBLE PRECISION array, dimension ( N*(N+1)/2 ), */ +/*          On entry, 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. */ + +/*  A       (output) 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). */ + +/*  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 */ +    --ap; +    a_dim1 = *lda; +    a_offset = 1 + a_dim1; +    a -= a_offset; + +    /* 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 = -5; +    } +    if (*info != 0) { +	i__1 = -(*info); +	xerbla_("DTPTTR", &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; +		a[i__ + j * a_dim1] = ap[k]; +	    } +	} +    } else { +	k = 0; +	i__1 = *n; +	for (j = 1; j <= i__1; ++j) { +	    i__2 = j; +	    for (i__ = 1; i__ <= i__2; ++i__) { +		++k; +		a[i__ + j * a_dim1] = ap[k]; +	    } +	} +    } + + +    return 0; + +/*     End of DTPTTR */ + +} /* dtpttr_ */  | 
