GNU Octave  6.2.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
xerbla.cc
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25 
26 #if defined (HAVE_CONFIG_H)
27 # include "config.h"
28 #endif
29 
30 #include <iostream>
31 
32 #include "f77-fcn.h"
33 #include "lo-blas-proto.h"
34 
35 typedef void (*xerbla_handler_fptr) (void);
36 
37 /* Pointer to function to call to handle error. In the Octave
38  interpreter we set this to a function that throws an exception and
39  transfers control to the enclosing try/catch block. That is
40  typically at the top-level REPL.
41 
42  We must use a function pointer instead of simply calling error
43  directly here because this function is called by LAPACK and BLAS
44  subroutines. To build shared libraries of those packages on Windows
45  requires that all symbols be known when the shared library is
46  constructed. If we call error directly, that would mean that the
47  BLAS and LAPACK libraries would have to depend on Octave... */
48 
50 
51 extern "C" void
53 {
54  xerbla_handler = fcn;
55 }
56 
57 /* Replacement for BLAS and LAPACK XERBLA subroutine that calls an
58  optionally installed handler function. */
59 
61 F77_FUNC (xerbla, XERBLA) (F77_CONST_CHAR_ARG_DEF (s_arg, len),
62  const F77_INT& info
64 {
65  const char *s = F77_CHAR_ARG_USE (s_arg);
66  int slen = F77_CHAR_ARG_LEN_USE (s_arg, len);
67 
68  std::cerr << std::string (s, slen) << ": parameter number " << info
69  << " is invalid" << std::endl;
70 
71  if (xerbla_handler)
72  (*xerbla_handler) ();
73 
74  F77_RETURN (0)
75 }
octave_f77_int_type F77_INT
Definition: f77-fcn.h:305
F77_RET_T(F77_CONST_CHAR_ARG_DECL, F77_CONST_CHAR_ARG_DECL, F77_CONST_CHAR_ARG_DECL, const F77_INT &, const F77_INT &, const F77_INT &, F77_INT &, F77_INT &, F77_DBLE *, const F77_INT &, F77_DBLE *, const F77_INT &, F77_DBLE *, F77_DBLE *, F77_DBLE *, const F77_INT &, F77_DBLE *, const F77_INT &, F77_DBLE *, const F77_INT &, F77_DBLE *, F77_INT *, F77_INT &F77_CHAR_ARG_LEN_DECL F77_CHAR_ARG_LEN_DECL F77_CHAR_ARG_LEN_DECL)
static xerbla_handler_fptr xerbla_handler
Definition: xerbla.cc:49
F77_RET_T F77_FUNC(xerbla, XERBLA)(F77_CONST_CHAR_ARG_DEF(s_arg
void(* xerbla_handler_fptr)(void)
Definition: xerbla.cc:35
void octave_set_xerbla_handler(xerbla_handler_fptr fcn)
Definition: xerbla.cc:52
F77_RET_T const F77_INT &info F77_CHAR_ARG_LEN_DEF(len))
Definition: xerbla.cc:63
F77_RET_T len
Definition: xerbla.cc:61