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#include <sm/state.h>
#include <sm/gen.h>
#include <cstdio>
SM_GENERATOR(powers_of_two)
{
int* a = SM_VAR(1);
SM_BEGIN;
{
while( (*a) > 0 ) {
SM_YIELD_VALUE(*a);
(*a) <<= 1;
}
}
SM_END;
}
int main()
{
auto state = sm_new_state();
auto gen = sm_generate(&powers_of_two);
sm_output output;
int out_int;
while(sm_next(&gen, state, &output)) {
if(!sm_output_value(output, &out_int))
continue;
printf("Power of two: %d\n", out_int);
}
sm_free_output(&output);
sm_free_generator(gen);
sm_free_state(state);
return 0;
}