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| author | Sandeep Gupta | 2017-06-18 23:55:40 +0530 |
|---|---|---|
| committer | Sandeep Gupta | 2017-06-18 23:55:40 +0530 |
| commit | 277d1edfa17bf3719d90ddbac8e31f6181e952c3 (patch) | |
| tree | 0661f1f52af0a0fd654edd4984c30e57037303c6 /src/fortran/lapack/zlacgv.f | |
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First commit
Diffstat (limited to 'src/fortran/lapack/zlacgv.f')
| -rw-r--r-- | src/fortran/lapack/zlacgv.f | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/fortran/lapack/zlacgv.f b/src/fortran/lapack/zlacgv.f new file mode 100644 index 0000000..0033e30 --- /dev/null +++ b/src/fortran/lapack/zlacgv.f @@ -0,0 +1,60 @@ + SUBROUTINE ZLACGV( N, X, INCX ) +* +* -- LAPACK auxiliary routine (version 3.1) -- +* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. +* November 2006 +* +* .. Scalar Arguments .. + INTEGER INCX, N +* .. +* .. Array Arguments .. + COMPLEX*16 X( * ) +* .. +* +* Purpose +* ======= +* +* ZLACGV conjugates a complex vector of length N. +* +* Arguments +* ========= +* +* N (input) INTEGER +* The length of the vector X. N >= 0. +* +* X (input/output) COMPLEX*16 array, dimension +* (1+(N-1)*abs(INCX)) +* On entry, the vector of length N to be conjugated. +* On exit, X is overwritten with conjg(X). +* +* INCX (input) INTEGER +* The spacing between successive elements of X. +* +* ===================================================================== +* +* .. Local Scalars .. + INTEGER I, IOFF +* .. +* .. Intrinsic Functions .. + INTRINSIC DCONJG +* .. +* .. Executable Statements .. +* + IF( INCX.EQ.1 ) THEN + DO 10 I = 1, N + X( I ) = DCONJG( X( I ) ) + 10 CONTINUE + ELSE + IOFF = 1 + IF( INCX.LT.0 ) + $ IOFF = 1 - ( N-1 )*INCX + DO 20 I = 1, N + X( IOFF ) = DCONJG( X( IOFF ) ) + IOFF = IOFF + INCX + 20 CONTINUE + END IF + RETURN +* +* End of ZLACGV +* + END |