Samples

Here is a sample Python code, producing infinite list of Fibonacchi numbers and corresponding C++ code with pseudo-generator:

def fibonacchi():
    "Generator, yielding infinite list of fibonacchi numbers"
    f0 = 1
    f1 = 1
    while True:
         yield f0
         f0, f1 = f1, f0+f1

#Sample usage of the above generator:
#Printing all fibonacchi numbers below 1000
for f in fibonacchi():
     print f
     if f > 1000:
         break

C++ analog with pseudo_generator

#include "pseudo_generator.hpp"

struct fibonacchi: generator< int >
{
    int f0, f1;
    int operator()();
}

int fibonacchi::operator()()
{
    DECLARE_GEN1 ( state1 );
    f0 = 1;
    f1 = 1;
    while( true ){
        YIELD ( f0, state1 );
        int f2 = f0 + f1;
        f0 = f1;
        f1 = f2;
    }
    END_GENERATOR;
    return -1; //Dummy return to suppress warning.
}

//Sample usage
int main( int argc, char* argv[] )
{
    using namespace std;
    fibonacchi gen;
    for( int x; gen >> x; ){
        cout << x << endl;
        if ( x > 1000 )
              break;
    }
    return 0;
}