Very small changes

Considering ways to take the algorithm and turn it into
OpenCL/Boost::Compute functions/code which would offer
a large speed increase.

Also, if I can figure out how to start from any arbitrary
digit (which is supposed to be possible) then multi-threading
would also give great speedups.

.gitignore

@@ -1,3 +1,4 @@
+cfg/
 *.txt
 main
 .gdb_history

Spigot.cpp

@@ -15,6 +15,12 @@ void Spigot::pump(void) {
     int tempPreDigit = 0;
     int j = this->spigotListLength - 1;
     int i = j;
+
+    /*
+     * This could be handled using boost::compute
+     * with a BOOST_COMPUTE_FUNCTION that just
+     * multiplies every item by 10.
+     */
     while(i >= 0) {
         this->spigotList[i] *= 10;
         i--;
@@ -22,6 +28,13 @@ void Spigot::pump(void) {
     this->carry = 0;
     i = j;
     // note this does *not* handle the i=0 case
+    /*
+     * This might also be able to be sped up
+     * with OpenCL/boost::compute by creating
+     * another custom function, but because
+     * the carry has to be passed along this might
+     * not work well
+     */
     while(i > 0) {
         this->spigotList[i] += this->carry;
         this->carry = (this->spigotList[i] / (i * 2 + 1)) * i;