GDB will not step into a user defined function - c++

Question

I am compiling some code for leftist heaps, and I want to step through my levelorder traversal function. However, whenever I reach a breakpoint at "theheap.levelorder()" and type "step", gdb passes over the code.
I am compiling with the -g flag and have tried -fno-inline to no avail. Why is this happening?
My makefile is as follows:
all:LeftistHeap.o lab10.o
g++ LeftistHeap.o lab10.o -g -o lab10
lab10.o:LeftistHeap.h
g++ -fno-inline -g -c lab10.cpp
LeftistMax.o:LeftistHeap.h LeftistHeap.cpp
g++ -fno-inline -g -c LeftistHeap.cpp
clean:
rm *.o *~ lab10
EDIT:
I have two levelorder() functions: one private, one public. i know this is probably unnecessary, but it shouldn't result in gdb acting like this.
levelorder is declared as follows in the .h file:
public:
void levelorder();
private:
void levelorder(LNode* node);
levelorder is defined as follows in the .cpp file:
void LeftistHeap::levelorder()
{
levelorder(root);
}
void LeftistHeap::levelorder(LNode* node)
{
queue<LNode*> currentLevel, nextLevel;
currentLevel.push(root);
while(!currentLevel.empty())
{
LNode* temp = currentLevel.front();
currentLevel.pop();
if(temp)
{
cout << temp->key << " ";
if(temp->lchild != NULL)
nextLevel.push(temp->lchild);
if(temp->lchild != NULL)
nextLevel.push(temp->rchild);
}
if(currentLevel.empty())
{
cout << endl;
swapq(currentLevel, nextLevel);
}
}
}