From b32d4faa82ee7546614d3f728957d92b620c73f1 Mon Sep 17 00:00:00 2001
From: tqchen <tianqi.tchen@gmail.com>
Date: Fri, 30 Jan 2015 16:50:10 -0800
Subject: [PATCH] quick fix seed

---
 Makefile                    | 2 +-
 src/learner/learner-inl.hpp | 6 +++---
 src/utils/base64.h          | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index a4bbe876f..abdeb0bb8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 export CC  = gcc
-export CXX = g++
+export CXX = clang++
 export MPICXX = mpicxx
 export LDFLAGS= -pthread -lm 
 export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC
diff --git a/src/learner/learner-inl.hpp b/src/learner/learner-inl.hpp
index 616cf03e9..f7af5bfff 100644
--- a/src/learner/learner-inl.hpp
+++ b/src/learner/learner-inl.hpp
@@ -104,7 +104,7 @@ class BoostLearner : public rabit::ISerializable {
     }
     if (!strcmp(name, "eval_metric")) evaluator_.AddEval(val);
     if (!strcmp("seed", name)) {
-      this->seed = seed; random::Seed(atoi(val));
+      seed = atoi(val); random::Seed(seed);
     }
     if (!strcmp("seed_per_iter", name)) seed_per_iteration = atoi(val);
     if (!strcmp("save_base64", name)) save_base64 = atoi(val);
@@ -269,8 +269,8 @@ class BoostLearner : public rabit::ISerializable {
    * \param p_train pointer to the data matrix
    */
   inline void UpdateOneIter(int iter, const DMatrix &train) {
-    if (seed_per_iteration || rabit::IsDistributed()) {
-      random::Seed(this->seed * kRandSeedMagic);
+    if (seed_per_iteration != 0 || rabit::IsDistributed()) {
+      random::Seed(this->seed * kRandSeedMagic + iter);
     }
     this->PredictRaw(train, &preds_);
     obj_->GetGradient(preds_, train.info, iter, &gpair_);
diff --git a/src/utils/base64.h b/src/utils/base64.h
index 36699199f..66e090ab0 100644
--- a/src/utils/base64.h
+++ b/src/utils/base64.h
@@ -139,7 +139,7 @@ class Base64InStream: public IStream {
 
  private:
   FILE *fp;
-  unsigned char tmp_ch;
+  int tmp_ch;
   int num_prev;
   unsigned char buf_prev[2];
   // whether we need to do strict check