HPL_dlacpy HPL 2.2 Library Functions February 24, 2016

Name

HPL_dlacpy B := A.

Synopsis

#include "hpl.h"

void HPL_dlacpy( const int M, const int N, const double * A, const int LDA, double * B, const int LDB );

Description

HPL_dlacpy copies an array A into an array B.

Arguments

M       (local input)                 const int
        On entry,  M specifies the number of rows of the arrays A and
        B. M must be at least zero.
N       (local input)                 const int
        On entry,  N specifies  the number of columns of the arrays A
        and B. N must be at least zero.
A       (local input)                 const double *
        On entry, A points to an array of dimension (LDA,N).
LDA     (local input)                 const int
        On entry, LDA specifies the leading dimension of the array A.
        LDA must be at least MAX(1,M).
B       (local output)                double *
        On entry, B points to an array of dimension (LDB,N). On exit,
        B is overwritten with A.
LDB     (local input)                 const int
        On entry, LDB specifies the leading dimension of the array B.
        LDB must be at least MAX(1,M).

Example

#include "hpl.h"

int main(int argc, char *argv[])
{
   double a[2*2], b[2*2];
   a[0] = 1.0; a[1] = 3.0; a[2] = 2.0; a[3] = 4.0;
   HPL_dlacpy( 2, 2, a, 2, b, 2 );
   printf("  [%f,%f]\n", b[0], b[2]);
   printf("b=[%f,%f]\n", b[1], b[3]);
   exit(0);
   return(0);
}

See Also

HPL_dlatcpy.