Function cheevr_

Computes selected eigenvalues, and optionally, eigenvectors of a complex Hermitian matrix. Eigenvalues are computed by the dqds algorithm, and eigenvectors are computed from various "good" LDL^T representations (also known as Relatively Robust Representations).

extern(C) void cheevr_ (
  char* jobz,
  char* range,
  char* uplo,
  int* n,
  std.complex.Complex!(float)* a,
  int* lda,
  float* vl,
  float* vu,
  int* il,
  int* iu,
  float* abstol,
  int* m,
  float* w,
  std.complex.Complex!(float)* z,
  int* ldz,
  int* isuppz,
  std.complex.Complex!(float)* work,
  int* lwork,
  float* rwork,
  int* lrwork,
  int* iwork,
  int* liwork,
  int* info,
  int jobz_len,
  int range_len,
  int uplo_len
);