#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;

}