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Fix the quick return code in Eigen subroutines #1034

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Fix the quick return code in Eigen subroutines #1034

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2 changes: 2 additions & 0 deletions SRC/cgeesx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -373,6 +373,8 @@ SUBROUTINE CGEESX( JOBVS, SORT, SELECT, SENSE, N, A, LDA, SDIM,
*
IF( N.EQ.0 ) THEN
SDIM = 0
IF (WANTSE .OR. WANTSB) RCONDE = 1.0E0
IF (WANTSV .OR. WANTSB) RCONDV = 0.0E0
RETURN
END IF
*
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7 changes: 5 additions & 2 deletions SRC/chbevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -382,8 +382,11 @@ SUBROUTINE CHBEVX( JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ,
END IF
IF( M.EQ.1 ) THEN
W( 1 ) = REAL( CTMP1 )
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Q( 1, 1 ) = ONE
Z( 1, 1 ) = ONE
IFAIL(1) = 0
ENDIF
END IF
RETURN
END IF
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6 changes: 4 additions & 2 deletions SRC/cheevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -390,8 +390,10 @@ SUBROUTINE CHEEVX( JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL,
W( 1 ) = REAL( A( 1, 1 ) )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = 0
ENDIF
RETURN
END IF
*
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6 changes: 4 additions & 2 deletions SRC/chpevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -341,8 +341,10 @@ SUBROUTINE CHPEVX( JOBZ, RANGE, UPLO, N, AP, VL, VU, IL, IU,
W( 1 ) = REAL( AP( 1 ) )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Z( 1, 1 ) = CONE
IFAIL(1) = 0
ENDIF
RETURN
END IF
*
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1 change: 1 addition & 0 deletions SRC/chpgvx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -355,6 +355,7 @@ SUBROUTINE CHPGVX( ITYPE, JOBZ, RANGE, UPLO, N, AP, BP, VL, VU,
*
* Quick return if possible
*
M = 0
IF( N.EQ.0 )
$ RETURN
*
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2 changes: 2 additions & 0 deletions SRC/dgeesx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -421,6 +421,8 @@ SUBROUTINE DGEESX( JOBVS, SORT, SELECT, SENSE, N, A, LDA, SDIM,
*
IF( N.EQ.0 ) THEN
SDIM = 0
IF (WANTSE .OR. WANTSB) RCONDE = 1.0D0
IF (WANTSV .OR. WANTSB) RCONDV = 0.0D0
RETURN
END IF
*
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7 changes: 5 additions & 2 deletions SRC/dsbevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -373,8 +373,11 @@ SUBROUTINE DSBEVX( JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ,
END IF
IF( M.EQ.1 ) THEN
W( 1 ) = TMP1
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Q( 1, 1 ) = ONE
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
END IF
RETURN
END IF
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6 changes: 4 additions & 2 deletions SRC/dspevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -332,8 +332,10 @@ SUBROUTINE DSPEVX( JOBZ, RANGE, UPLO, N, AP, VL, VU, IL, IU,
W( 1 ) = AP( 1 )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
RETURN
END IF
*
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6 changes: 4 additions & 2 deletions SRC/dsyevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -378,8 +378,10 @@ SUBROUTINE DSYEVX( JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL,
W( 1 ) = A( 1, 1 )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
RETURN
END IF
*
Expand Down
2 changes: 2 additions & 0 deletions SRC/sgeesx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -422,6 +422,8 @@ SUBROUTINE SGEESX( JOBVS, SORT, SELECT, SENSE, N, A, LDA, SDIM,
*
IF( N.EQ.0 ) THEN
SDIM = 0
IF (WANTSE .OR. WANTSB) RCONDE = 1.0E0
IF (WANTSV .OR. WANTSB) RCONDV = 0.0E0
RETURN
END IF
*
Expand Down
7 changes: 5 additions & 2 deletions SRC/ssbevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -373,8 +373,11 @@ SUBROUTINE SSBEVX( JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ,
END IF
IF( M.EQ.1 ) THEN
W( 1 ) = TMP1
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Q( 1, 1 ) = ONE
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
END IF
RETURN
END IF
Expand Down
6 changes: 4 additions & 2 deletions SRC/sspevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -332,8 +332,10 @@ SUBROUTINE SSPEVX( JOBZ, RANGE, UPLO, N, AP, VL, VU, IL, IU,
W( 1 ) = AP( 1 )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
RETURN
END IF
*
Expand Down
6 changes: 4 additions & 2 deletions SRC/ssyevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -379,8 +379,10 @@ SUBROUTINE SSYEVX( JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL,
W( 1 ) = A( 1, 1 )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = ONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = ZERO
ENDIF
RETURN
END IF
*
Expand Down
2 changes: 2 additions & 0 deletions SRC/zgeesx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -372,6 +372,8 @@ SUBROUTINE ZGEESX( JOBVS, SORT, SELECT, SENSE, N, A, LDA, SDIM,
*
IF( N.EQ.0 ) THEN
SDIM = 0
IF (WANTSE .OR. WANTSB) RCONDE = 1.0D0
IF (WANTSV .OR. WANTSB) RCONDV = 0.0D0
RETURN
END IF
*
Expand Down
7 changes: 5 additions & 2 deletions SRC/zhbevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -382,8 +382,11 @@ SUBROUTINE ZHBEVX( JOBZ, RANGE, UPLO, N, KD, AB, LDAB, Q, LDQ,
END IF
IF( M.EQ.1 ) THEN
W( 1 ) = DBLE( CTMP1 )
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Q( 1, 1 ) = ONE
Z( 1, 1 ) = ONE
IFAIL(1) = 0
ENDIF
END IF
RETURN
END IF
Expand Down
6 changes: 4 additions & 2 deletions SRC/zheevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -389,8 +389,10 @@ SUBROUTINE ZHEEVX( JOBZ, RANGE, UPLO, N, A, LDA, VL, VU, IL,
W( 1 ) = DBLE( A( 1, 1 ) )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Z( 1, 1 ) = ONE
IFAIL(1) = 0
ENDIF
RETURN
END IF
*
Expand Down
6 changes: 4 additions & 2 deletions SRC/zhpevx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -341,8 +341,10 @@ SUBROUTINE ZHPEVX( JOBZ, RANGE, UPLO, N, AP, VL, VU, IL, IU,
W( 1 ) = DBLE( AP( 1 ) )
END IF
END IF
IF( WANTZ )
$ Z( 1, 1 ) = CONE
IF( WANTZ ) THEN
Z( 1, 1 ) = CONE
IFAIL(1) = 0
ENDIF
RETURN
END IF
*
Expand Down
1 change: 1 addition & 0 deletions SRC/zhpgvx.f
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Original file line number Diff line number Diff line change
Expand Up @@ -355,6 +355,7 @@ SUBROUTINE ZHPGVX( ITYPE, JOBZ, RANGE, UPLO, N, AP, BP, VL, VU,
*
* Quick return if possible
*
M = 0
IF( N.EQ.0 )
$ RETURN
*
Expand Down
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