forked from enlightenment/equate
40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
#ifndef _EQUATE_CALC_H
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#define _EQUATE_CALC_H
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#include <Eina.h>
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/* Functions the gui calls */
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void equate_clear(void);
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int equate_append(char *str);
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double equate_eval(void);
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const char *equate_string_get(void);
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Eina_Bool equate_ok(void);
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void math_init(void);
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/* Fonctions type. */
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typedef double (*func_t) (double);
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/* Data type for links in the chain of symbols. */
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struct symrec
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{
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char *name; /* name of symbol */
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int type; /* type of symbol: either VAR or FNCT */
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union
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{
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double var; /* value of a VAR */
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func_t fnctptr; /* value of a FNCT */
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} value;
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struct symrec *next; /* link field */
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};
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typedef struct symrec symrec;
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/* The symbol table: a chain of `struct symrec'. */
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extern symrec *sym_table;
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symrec *putsym(const char *, int);
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symrec *getsym(const char *);
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#endif
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