Function cgtcon_

extern(C) void cgtcon_ (
  char* norm,
  int* n,
  std.complex.Complex!(float)* dl,
  std.complex.Complex!(float)* d,
  std.complex.Complex!(float)* du,
  std.complex.Complex!(float)* du2,
  int* ipiv,
  float* anorm,
  float* rcond,
  std.complex.Complex!(float)* work,
  int* info,
  int norm_len
);