gecode 中的metainfo

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這個類只是作為資訊儲存的載體，並沒有進行其它操作

t:type 類型

r:rstart reastart的次數

f:fail 失敗的次數

ng: no good 

a: asset 資源分成了幾部份

  /*   * Information from meta search engines   */  forceinline  MetaInfo::MetaInfo(unsigned long int r0,                     unsigned long int s0,                     unsigned long int f0,                     const Space* l0,                     NoGoods& ng0)    : t(RESTART), r(r0), s(s0), f(f0), l(l0), ng(ng0), a(0) {}  forceinline  MetaInfo::MetaInfo(unsigned int a0)    : t(PORTFOLIO), r(0), s(0), f(0), l(NULL), ng(NoGoods::eng), a(a0) {}  forceinline MetaInfo::Type  MetaInfo::type(void) const {    return t;  }  forceinline unsigned long int  MetaInfo::restart(void) const {    assert(type() == RESTART);    return r;  }  forceinline unsigned long int  MetaInfo::solution(void) const {    assert(type() == RESTART);    return s;  }  forceinline unsigned long int  MetaInfo::fail(void) const {    assert(type() == RESTART);    return f;  }  forceinline const Space*  MetaInfo::last(void) const {    assert(type() == RESTART);    return l;  }  forceinline const NoGoods&  MetaInfo::nogoods(void) const {    assert(type() == RESTART);    return ng;  }  forceinline unsigned int  MetaInfo::asset(void) const {    assert(type() == PORTFOLIO);    return a;  }

　　

gecode 中的metainfo