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| author | jason <jason@8a072113-8704-0410-8d35-dd094bca7971> | 2008-10-28 01:38:50 +0000 |
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| committer | jason <jason@8a072113-8704-0410-8d35-dd094bca7971> | 2008-10-28 01:38:50 +0000 |
| commit | baba851215b44ac3b60b9248eb02bcce7eb76247 (patch) | |
| tree | 8c0f5c006875532a30d4409f5e94b0f310ff00a7 /SRC/zlacgv.f | |
| download | lapack-baba851215b44ac3b60b9248eb02bcce7eb76247.tar.gz lapack-baba851215b44ac3b60b9248eb02bcce7eb76247.tar.bz2 lapack-baba851215b44ac3b60b9248eb02bcce7eb76247.zip | |
Move LAPACK trunk into position.
Diffstat (limited to 'SRC/zlacgv.f')
| -rw-r--r-- | SRC/zlacgv.f | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/SRC/zlacgv.f b/SRC/zlacgv.f new file mode 100644 index 00000000..0033e306 --- /dev/null +++ b/SRC/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 |