src/expr-deriv.h

   1 #ifndef GNM_EXPR_DERIV_H_
   2 #define GNM_EXPR_DERIV_H_
   3
   4 G_BEGIN_DECLS
   5
   6 #include "expr.h"
   7 #include "numbers.h"
   8
   9 /* ------------------------------------------------------------------------- */
  10
  11 typedef struct GnmExprDeriv_ GnmExprDeriv;
  12
  13 GnmExprDeriv *gnm_expr_deriv_info_new (void);
  14 void gnm_expr_deriv_info_free (GnmExprDeriv *deriv);
  15
  16 void gnm_expr_deriv_info_set_var (GnmExprDeriv *deriv, GnmEvalPos const *var);
  17
  18 /* ------------------------------------------------------------------------- */
  19
  20 GnmExpr const *gnm_expr_deriv (GnmExpr const *expr,
  21                                GnmEvalPos const *ep,
  22                                GnmExprDeriv *info);
  23
  24
  25 GnmExprTop const *gnm_expr_top_deriv (GnmExprTop const *texpr,
  26                                       GnmEvalPos const *ep,
  27                                       GnmExprDeriv *info);
  28
  29 GnmExprTop const *gnm_expr_cell_deriv (GnmCell *y, GnmCell *x);
  30
  31 gnm_float gnm_expr_cell_deriv_value (GnmCell *y, GnmCell *x);
  32
  33 /* ------------------------------------------------------------------------- */
  34
  35 GnmExprList *gnm_expr_deriv_collect (GnmExpr const *expr,
  36                                      GnmEvalPos const *ep,
  37                                      GnmExprDeriv *info);
  38
  39 typedef GnmExpr const * (*GnmExprDerivHandler) (GnmExpr const *expr,
  40                                                 GnmEvalPos const *ep,
  41                                                 GnmExprDeriv *info);
  42 typedef enum {
  43         GNM_EXPR_DERIV_NO_CHAIN = 0x0,
  44         GNM_EXPR_DERIV_CHAIN = 0x1
  45 } GnmExprDerivFlags;
  46
  47 void gnm_expr_deriv_install_handler (GnmFunc *func, GnmExprDerivHandler h,
  48                                      GnmExprDerivFlags flags);
  49 void gnm_expr_deriv_uninstall_handler (GnmFunc *func);
  50 void _gnm_expr_deriv_shutdown (void);
  51
  52 /* ------------------------------------------------------------------------- */
  53
  54 G_END_DECLS
  55
  56 #endif