zdotc
zdotc - compute the dot product of two vectors x and conjg(y).
DOUBLE COMPLEX FUNCTION ZDOTC( N, X, INCX, Y, INCY)
DOUBLE COMPLEX X(*), Y(*)
INTEGER N, INCX, INCY
DOUBLE COMPLEX FUNCTION ZDOTC_64( N, X, INCX, Y, INCY)
DOUBLE COMPLEX X(*), Y(*)
INTEGER*8 N, INCX, INCY
COMPLEX(8) FUNCTION DOTC( [N], X, [INCX], Y, [INCY])
COMPLEX(8), DIMENSION(:) :: X, Y
INTEGER :: N, INCX, INCY
COMPLEX(8) FUNCTION DOTC_64( [N], X, [INCX], Y, [INCY])
COMPLEX(8), DIMENSION(:) :: X, Y
INTEGER(8) :: N, INCX, INCY
#include <sunperf.h>
doublecomplex zdotc(int n, doublecomplex *x, int incx, doublecomplex *y, int incy);
doublecomplex zdotc_64(long n, doublecomplex *x, long incx, doublecomplex *y, long incy);
zdotc compute the dot product of x and conjg(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.