C++ (Cpp) calc_expr示例

示例#1

文件： main.c 项目： decebaldecebal/EvalExpr

int     eval_expr(char *str)
{
	int		i;
	t_env	*env;

	env = create_env();
	if (!env)
		return (0);
	i = 0;
	while (str[i])
        read_token(env, str, &i); //transform to reverse-polish notation
	while (env->stack)
	{
		add_to_queue(env, env->stack->data);
		pop_from_stack(env);
	}
	env->stack = NULL;
	i = calc_expr(env); //calculate result from reverse-polish notation
	free(env);
	return (i);
}

示例#2

文件： codelink.cpp 项目： michaelgeiss/komplexe

int main() {
  printf("architecture %s\n", sizeof(void *) == 8 ? "64bit" : "32bit");
  printf("expr(compiled) = %d\n", calc_expr(23));

  return EXIT_SUCCESS;
}