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.TH HPL_dcopy 3 "September 10, 2008" "HPL 2.0" "HPL Library Functions"
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.SH NAME
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HPL_dcopy \- y := x.
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.SH SYNOPSIS
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\fB\&#include "hpl.h"\fR
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\fB\&void\fR
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\fB\&HPL_dcopy(\fR
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\fB\&const int\fR
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\fI\&N\fR,
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\fB\&const double *\fR
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\fI\&X\fR,
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\fB\&const int\fR
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\fI\&INCX\fR,
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\fB\&double *\fR
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\fI\&Y\fR,
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\fB\&const int\fR
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\fI\&INCY\fR
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\fB\&);\fR
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.SH DESCRIPTION
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\fB\&HPL_dcopy\fR
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copies the vector x into the vector y.
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.SH ARGUMENTS
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.TP 8
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N       (local input)           const int
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On entry, N specifies the length of the vectors  x  and  y. N
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must be at least zero.
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.TP 8
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X       (local input)           const double *
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On entry,  X  is an incremented array of dimension  at  least
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( 1 + ( n - 1 ) * abs( INCX ) )  that  contains the vector x.
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.TP 8
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INCX    (local input)           const int
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On entry, INCX specifies the increment for the elements of X.
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INCX must not be zero.
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.TP 8
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Y       (local input/output)    double *
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On entry,  Y  is an incremented array of dimension  at  least
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( 1 + ( n - 1 ) * abs( INCY ) )  that  contains the vector y.
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On exit, the entries of the incremented array  Y  are updated
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with the entries of the incremented array X.
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.TP 8
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INCY    (local input)           const int
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On entry, INCY specifies the increment for the elements of Y.
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INCY must not be zero.
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.SH EXAMPLE
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\fI\&#include "hpl.h"\fR
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int main(int argc, char *argv[])
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.br
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{
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.br
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   double x[3], y[3];
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.br
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   x[0] = 1.0; x[1] = 2.0; x[2] = 3.0;
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.br
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   y[0] = 4.0; y[1] = 5.0; y[2] = 6.0;
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.br
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   HPL_dcopy( 3, x, 1, y, 1 );
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.br
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   printf("y=[%f,%f,%f]\en", y[0], y[1], y[2]);
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.br
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   exit(0); return(0);
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.br
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}
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.SH SEE ALSO
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.BR HPL_daxpy \ (3),
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.BR HPL_dscal \ (3),
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.BR HPL_dswap \ (3).