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#include "tinyexpr.h"
#include <stdio.h>
/* An example of calling a C function. */
double my_sum(double a, double b) {
printf("Called C function with %f and %f.\n", a, b);
return a + b;
}
int main(int argc, char *argv[])
{
te_variable vars[] = {
{"mysum", my_sum, TE_FUNCTION2}
};
const char *expression = "mysum(5, 6)";
printf("Evaluating:\n\t%s\n", expression);
int err;
te_expr *n = te_compile(expression, vars, 1, &err);
if (n) {
const double r = te_eval(n);
printf("Result:\n\t%f\n", r);
te_free(n);
} else {
/* Show the user where the error is at. */
printf("\t%*s^\nError near here", err-1, "");
}
return 0;
}
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