Function sgtrfs_

Improves the computed solution to a general tridiagonal system of linear equations AX=B, A**T X=B or A**H X=B, and provides forward and backward error bounds for the solution.

extern(C) void sgtrfs_ (
  char* trans,
  int* n,
  int* nrhs,
  float* dl,
  float* d,
  float* du,
  float* dlf,
  float* df,
  float* duf,
  float* du2,
  int* ipiv,
  float* b,
  int* ldb,
  float* x,
  int* ldx,
  float* ferr,
  float* berr,
  float* work,
  int* iwork,
  int* info,
  int trans_len
);