cdotu
cdotu - compute the dot product of two vectors x and y.
COMPLEX FUNCTION CDOTU( N, X, INCX, Y, INCY)
COMPLEX X(*), Y(*)
INTEGER N, INCX, INCY
COMPLEX FUNCTION CDOTU_64( N, X, INCX, Y, INCY)
COMPLEX X(*), Y(*)
INTEGER*8 N, INCX, INCY
COMPLEX FUNCTION DOT( [N], X, [INCX], Y, [INCY])
COMPLEX, DIMENSION(:) :: X, Y
INTEGER :: N, INCX, INCY
COMPLEX FUNCTION DOT_64( [N], X, [INCX], Y, [INCY])
COMPLEX, DIMENSION(:) :: X, Y
INTEGER(8) :: N, INCX, INCY
#include <sunperf.h>
complex cdotu(int n, complex *x, int incx, complex *y, int incy);
complex cdotu_64(long n, complex *x, long incx, complex *y, long incy);
cdotu compute the dot product of x and y where x and y are n-vectors.
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* N (input)
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On entry, N specifies the number of elements in the vector. If N is not positive then the function returns the value 0.0. Unchanged on exit.
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* X (input)
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of DIMENSION at least ( 1 + ( n - 1 )*abs( INCX ) ). On entry, the incremented array X must contain the vector x. Unchanged on exit.
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* INCX (input)
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On entry, INCX specifies the increment for the elements of X. INCX must not be zero. Unchanged on exit.
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* Y (input)
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of DIMENSION at least ( 1 + ( m - 1 )*abs( INCY ) ). On entry, the incremented array Y must contain the vector y. Unchanged on exit.
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* INCY (input)
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On entry, INCY specifies the increment for the elements of Y. INCY must not be zero. Unchanged on exit.