Fix the quick return code in Eigen subroutines #1034
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…C/ZHEEVX, S/DSYEVX, C/ZHPEVX, S/DSPEVX, C/ZHPGVX. 1. set RCONDE and RCONDV in S/D/C/ZGEESX when N = 0. 2. set Q in C/ZHBEVX, S/DSBEVX when N = 1 and WANTZ. 3. set IFAIL in C/ZHBEVX, S/DSBEVX, C/ZHEEVX, S/DSYEVX, C/ZHPEVX, S/DSPEVX when N = 1 and WANTZ. 4. set M in C/ZHPGVX when N = 0.
angsch
reviewed
Jun 23, 2025
| @@ -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 | |||
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Why not RCONDE = ONE? (same question for other precisions)
| @@ -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 | |||
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RCONDV = ZERO? (same question for other precisions)
| IF( WANTZ ) | ||
| $ Z( 1, 1 ) = CONE | ||
| IF( WANTZ ) THEN | ||
| Q( 1, 1 ) = ONE |
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To have matching types: ONE -> CONE
Please also check precision 'z'.
| $ Z( 1, 1 ) = CONE | ||
| IF( WANTZ ) THEN | ||
| Q( 1, 1 ) = ONE | ||
| Z( 1, 1 ) = ONE |
| IF( WANTZ ) | ||
| $ Z( 1, 1 ) = CONE | ||
| IF( WANTZ ) THEN | ||
| Z( 1, 1 ) = ONE |
| IF( WANTZ ) THEN | ||
| Q( 1, 1 ) = ONE | ||
| Z( 1, 1 ) = ONE | ||
| IFAIL(1) = ZERO |
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To have matching types: IFAIL(1) = 0 (more occurrences in other files)
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Description
Fix the quick return code for S/D/C/ZGEESX, C/ZHBEVX, S/DSBEVX, C/ZHEEVX, S/DSYEVX, C/ZHPEVX, S/DSPEVX, C/ZHPGVX.
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