element.h

   1 #ifndef __ELEMENT_H__
   2 #define __ELEMENT_H__
   3
   4 /* global variables */
   5
   6 /* function type */
   7
   8 typedef enum {
   9     Val = 0, Sig,
  10     Add, Sub,
  11     Mul, Div, Mod,
  12     Pow, Sqr,
  13     Cos, Sin, Tan, Acos, Asin, Atan,
  14     Ln, Log, Exp,
  15     Erfc, Erf,
  16     Abs, Ceil, Floor,
  17     Store, Recall, Inc, Dec, Disp, Memory, Clear,
  18     Quit, Help, History,
  19     Ans, E, Pi,
  20     Equal, Diff, Ge, Le, Gt, Lt,
  21     And, Or, Not,
  22     Cond, While, Code, Print,
  23     Prog, Arg, Call, List, Edit, Del,
  24     Get, Length, Pop, Push, Put, Set, Show,
  25     Max, Mean, Median, Min, Order, Prod, Sum, Variance,
  26     Precision, Base, Deg, Grad, Rad,
  27 } func_t;
  28
  29 /* keyword type */
  30
  31 typedef struct _keyword_t {
  32     char *keyword;
  33     func_t func;
  34     int nbops;
  35     int offset;
  36     float prio;
  37 } keyword_t;
  38
  39 /* calculus element type */
  40
  41 typedef struct _element_t {
  42     func_t func;
  43     int nbops;
  44     struct _element_t **ops;
  45     double value;
  46     int prio;
  47     int hidden;
  48     char *string;
  49 } element_t;
  50
  51 #define ERROR_OP ((element_t *)(-1))
  52
  53 /* functions */
  54
  55 element_t *newelement (func_t function, int nbops, int prio);
  56 void delelement (element_t *root);
  57 element_t *dupelement (element_t *root);
  58
  59 #endif /* __ELEMENT_H__ */
  60
  61 /* vim: set ts=4 sw=4 et: */