pub unsafe extern fn chegvx_(itype: *const c_int, jobz: *const c_char, range: *const c_char, uplo: *const c_char, n: *const c_int, a: *mut complex_float, lda: *const c_int, b: *mut complex_float, ldb: *const c_int, vl: *const c_float, vu: *const c_float, il: *const c_int, iu: *const c_int, abstol: *const c_float, m: *mut c_int, w: *mut c_float, z: *mut complex_float, ldz: *const c_int, work: *mut complex_float, lwork: *const c_int, rwork: *mut c_float, iwork: *mut c_int, ifail: *mut c_int, info: *mut c_int)