//定义一个宏。宏里面是指针函数

#define CV_INT_HAAR_CLASSIFIER_FIELDS()                                 \

    float (*eval)( CvIntHaarClassifier*, sum_type*, sum_type*, float ); \     //计算分类器haar特征值

    void  (*save)( CvIntHaarClassifier*, FILE* file );                  \     //保存haar特征值

    void  (*release)( CvIntHaarClassifier** );                                //释放特征值

/* internal weak classifier*/

typedef struct CvIntHaarClassifier//内部弱分类器

{

    CV_INT_HAAR_CLASSIFIER_FIELDS()

} CvIntHaarClassifier;

/*

 * CART classifier

 */

typedef struct CvCARTHaarClassifier

{

    CV_INT_HAAR_CLASSIFIER_FIELDS()

    int count;

    int* compidx;

    CvTHaarFeature* feature;

    CvFastHaarFeature* fastfeature;

    float* threshold;

    int* left;

    int* right;

    float* val;

} CvCARTHaarClassifier;