// myque2.cpp  -- §â«Å§i¼g¦b myque2.h
// CopyLeft by tsaiwn@csie.nctu.edu.tw
#include "myque2.h"
// some implementations are in myque2.h
////// ////// //////
void MyQueue::enque(long x) {
    if( isfull() ) { return; }  // may want to give some error message?
    data[ptail] = x;
    ptail++;
    ptail %=  NELEMENT;    /* x %= y;  means x = x % y; */
}
long MyQueue::deque(void) {  
   if( !isempty() ) {
      long tmp=data[phead];
      phead++; phead %= NELEMENT;
      return tmp;
   } // if !isempty
}