This function can be used to traverse through all the symbols stored
in a symbol table. The function starts to go through the symbols and
for each symbol calls the function call_back_function.
void (*call_back_function)(char *SymbolName, void *SymbolValue, void *f),
The first argument is the symbol table to traverse. The second argument is the
function to be called for each symbol. This function gets three arguments. The
first is a pointer to the symbol string. The second is the pointer to the symbol
arguments. The third argument is a general pointer which is passed to the
Note that the call back function gets the pointer to the symbol arguments and not the pointer to the pointer to the symbol arguments, and therefore call back function can not change the actual symbol value pointer.