Merge pull request #3914 from martin-frbg/lapack798

Fix bug in complex precision tests (c|z)het21 (Reference-LAPACK PR798)

lapack-netlib/TESTING/EIG/chet21.f

@@ -304,9 +304,9 @@
    10    CONTINUE
 *
          IF( N.GT.1 .AND. KBAND.EQ.1 ) THEN
-            DO 20 J = 2, N - 1
+            DO 20 J = 1, N - 1
                CALL CHER2( CUPLO, N, -CMPLX( E( J ) ), U( 1, J ), 1,
-     $                     U( 1, J-1 ), 1, WORK, N )
+     $                     U( 1, J+1 ), 1, WORK, N )
    20       CONTINUE
          END IF
          WNORM = CLANHE( '1', CUPLO, N, WORK, N, RWORK )

lapack-netlib/TESTING/EIG/zhet21.f

@@ -304,9 +304,9 @@
    10    CONTINUE
 *
          IF( N.GT.1 .AND. KBAND.EQ.1 ) THEN
-            DO 20 J = 2, N - 1
+            DO 20 J = 1, N - 1
                CALL ZHER2( CUPLO, N, -DCMPLX( E( J ) ), U( 1, J ), 1,
-     $                     U( 1, J-1 ), 1, WORK, N )
+     $                     U( 1, J+1 ), 1, WORK, N )
    20       CONTINUE
          END IF
          WNORM = ZLANHE( '1', CUPLO, N, WORK, N, RWORK )