36 lines
1005 B
C
36 lines
1005 B
C
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#ifndef EXPR_EVAL_H
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#define EXPR_EVAL_H
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#include <map>
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#include <string>
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#include "arch_error.h"
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/**** Structs ****/
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class t_formula_data {
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public:
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void set_var_value(std::string var, int value) { vars_[var] = value; }
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int get_var_value(std::string var) const {
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auto iter = vars_.find(var);
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if (iter == vars_.end()) {
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archfpga_throw(__FILE__, __LINE__,
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"No value found for variable '%s' from expression\n", var.c_str());
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}
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return iter->second;
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}
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private:
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std::map<std::string, int> vars_;
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};
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/* returns integer result according to specified formula and data */
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int parse_formula(std::string formula, const t_formula_data& mydata);
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/* returns integer result according to specified piece-wise formula and data */
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int parse_piecewise_formula(const char* formula, const t_formula_data& mydata);
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/* checks if the specified formula is piece-wise defined */
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bool is_piecewise_formula(const char* formula);
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#endif
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