Function ztgexc_

extern(C) void ztgexc_ (
  int* wantq,
  int* wantz,
  int* n,
  std.complex.Complex!(double)* a,
  int* lda,
  std.complex.Complex!(double)* b,
  int* ldb,
  std.complex.Complex!(double)* q,
  int* ldq,
  std.complex.Complex!(double)* z,
  int* ldz,
  int* ifst,
  int* ilst,
  int* info
);