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push backward compatible fix

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This commit is contained in:
tqchen 2015-04-06 14:50:21 -07:00
parent 36dcb061a8
commit 99f8dd280e
1 changed files with 13 additions and 1 deletions
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14
src/learner/learner-inl.hpp
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@ -163,7 +163,19 @@ class BoostLearner : public rabit::ISerializable {
bool calc_num_feature = true) {
utils::Check(fi.Read(&mparam, sizeof(ModelParam)) != 0,
"BoostLearner: wrong model format");
utils::Check(fi.Read(&name_obj_), "BoostLearner: wrong model format");
{
// backward compatibility code for compatible with old model type
// for new model, Read(&name_obj_) is suffice
size_t len;
utils::Check(fi.Read(&len, sizeof(len)) != 0, "BoostLearner: wrong model format");
if (len >= std::numeric_limits<unsigned>::max()) {
int gap;
utils::Check(fi.Read(&gap, sizeof(gap)) != 0, "BoostLearner: wrong model format");
len = len >> 32UL;
}
name_obj_.resize(len);
utils::Check(fi.Read(&name_obj_[0], len) != 0, "BoostLearner: wrong model format");
}
utils::Check(fi.Read(&name_gbm_), "BoostLearner: wrong model format");
// delete existing gbm if any
if (obj_ != NULL) delete obj_;