SUBROUTINE CHPGST( ITYPE, UPLO, N, AP, BP, INFO) CHARACTER * 1 UPLO COMPLEX AP(*), BP(*) INTEGER ITYPE, N, INFO SUBROUTINE CHPGST_64( ITYPE, UPLO, N, AP, BP, INFO) CHARACTER * 1 UPLO COMPLEX AP(*), BP(*) INTEGER*8 ITYPE, N, INFO
SUBROUTINE HPGST( ITYPE, UPLO, N, AP, BP, [INFO]) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: AP, BP INTEGER :: ITYPE, N, INFO SUBROUTINE HPGST_64( ITYPE, UPLO, N, AP, BP, [INFO]) CHARACTER(LEN=1) :: UPLO COMPLEX, DIMENSION(:) :: AP, BP INTEGER(8) :: ITYPE, N, INFO
void chpgst(int itype, char uplo, int n, complex *ap, complex *bp, int *info);
void chpgst_64(long itype, char uplo, long n, complex *ap, complex *bp, long *info);
If ITYPE = 1, the problem is A*x = lambda*B*x,
and A is overwritten by inv(U**H)*A*inv(U) or inv(L)*A*inv(L**H)
If ITYPE = 2 or 3, the problem is A*B*x = lambda*x or
B*A*x = lambda*x, and A is overwritten by U*A*U**H or L**H*A*L.
B must have been previously factorized as U**H*U or L*L**H by CPPTRF.
On exit, if INFO = 0, the transformed matrix, stored in the same format as A.