vectorstack.c.svn-base

AVR单片机下

/*                ****ROBOCON 2009 | BUPT TEAM*******
 * ------------------------------------------------------------------------
 * FileName   : vectorStack.c
 * Version    : 2.0
 * Brief      :
 * Code by    : leaf
 * Date       : Apr 21, 2009
 * Note       :
 *
 *
 * ------------------------------------------------------------------------
 */

#include "lib_bupt.h"
#ifdef VECTORSTACK_H_INCLUDED

void vsInit( VStack *v, size_t initsz )
{
	vectorInit( &v->_data, initsz );
	v->_size = 0;
}

void vsPush( VStack *v, VectorDataType d )
{
	vectorSet( &v->_data, v->_size, d );
	++ v->_size;
}

VectorDataType vsPop( VStack *v)
{
	-- v->_size;
	return vectorGet( &v->_data, v->_size );
}

size_t vsSize( const VStack *v )
{
	return v->_size;
}

VectorDataType vsGet( const VStack *v, size_t idx )
{
	if( idx < v->_size )
		return vectorGet( &v->_data, idx );
	else
		return 0;
}

#endif