?? stack.c
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/******************************************************************** * File: stack.c * * Simple stack implementation. * * Author: M. Tim Jones <mtj@mtjones.com> * */#include <assert.h>#define MAX_ELEMENTS 50static int stack[MAX_ELEMENTS];static int index;void stackInit( void ){ index = 0; return;}int stackNumElems( void ){ return index;}unsigned int stackTop( void ){ assert( index > 0 ); return (stack[index-1]);}void stackPush( unsigned int value ){ assert ( index < MAX_ELEMENTS ); stack[index] = value; index++; return;}unsigned int stackPop( void ){ unsigned int value; assert( index > 0 ); index--; value = stack[index]; return value;}
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