From e50fa9e78f0deb5454474ca756aa9b98524bac38 Mon Sep 17 00:00:00 2001
From: tqchen <tianqi.tchen@gmail.com>
Date: Tue, 3 Mar 2015 13:16:20 -0800
Subject: [PATCH] fix solaris

---
 src/io/io.cpp                     |  2 +-
 src/tree/updater_colmaker-inl.hpp |  5 +++--
 src/utils/io.h                    | 12 ++++++------
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/io/io.cpp b/src/io/io.cpp
index eb7f9fbde..e846d77bf 100644
--- a/src/io/io.cpp
+++ b/src/io/io.cpp
@@ -15,7 +15,7 @@
 namespace xgboost {
 namespace io {
 DataMatrix* LoadDataMatrix(const char *fname, bool silent, bool savebuffer) {
-  if (!strcmp(fname, "stdin")) {
+  if (!std::strcmp(fname, "stdin")) {
     DMatrixSimple *dmat = new DMatrixSimple();
     dmat->LoadText(fname, silent);
     return dmat;
diff --git a/src/tree/updater_colmaker-inl.hpp b/src/tree/updater_colmaker-inl.hpp
index bbf6242c5..2ad9ea979 100644
--- a/src/tree/updater_colmaker-inl.hpp
+++ b/src/tree/updater_colmaker-inl.hpp
@@ -6,6 +6,7 @@
  * \author Tianqi Chen
  */
 #include <vector>
+#include <cmath>
 #include <algorithm>
 #include "./param.h"
 #include "./updater.h"
@@ -279,7 +280,7 @@ class ColMaker: public IUpdater {
           ThreadEntry &e = stemp[tid][nid];
           float fsplit;
           if (tid != 0) {
-            if(fabsf(stemp[tid - 1][nid].last_fvalue - e.first_fvalue) > rt_2eps) {
+            if(std::abs(stemp[tid - 1][nid].last_fvalue - e.first_fvalue) > rt_2eps) {
               fsplit = (stemp[tid - 1][nid].last_fvalue - e.first_fvalue) * 0.5f;
             } else {
               continue;
@@ -334,7 +335,7 @@ class ColMaker: public IUpdater {
             e.first_fvalue = fvalue;
           } else {
             // forward default right
-            if (fabsf(fvalue - e.first_fvalue) > rt_2eps){
+            if (std::abs(fvalue - e.first_fvalue) > rt_2eps){
               if (need_forward) { 
                 c.SetSubstract(snode[nid].stats, e.stats);
                 if (c.sum_hess >= param.min_child_weight && e.stats.sum_hess >= param.min_child_weight) {
diff --git a/src/utils/io.h b/src/utils/io.h
index 810510b6d..e89cb24fd 100644
--- a/src/utils/io.h
+++ b/src/utils/io.h
@@ -110,7 +110,7 @@ struct MemoryFixSizeBuffer : public ISeekStream {
     utils::Assert(curr_ptr_ + size <= buffer_size_,
                   "read can not have position excceed buffer length");
     size_t nread = std::min(buffer_size_ - curr_ptr_, size);
-    if (nread != 0) memcpy(ptr, p_buffer_ + curr_ptr_, nread);
+    if (nread != 0) std::memcpy(ptr, p_buffer_ + curr_ptr_, nread);
     curr_ptr_ += nread;
     return nread;
   }
@@ -118,7 +118,7 @@ struct MemoryFixSizeBuffer : public ISeekStream {
     if (size == 0) return;
     utils::Assert(curr_ptr_ + size <=  buffer_size_, 
                   "write position exceed fixed buffer size");
-    memcpy(p_buffer_ + curr_ptr_, ptr, size);
+    std::memcpy(p_buffer_ + curr_ptr_, ptr, size);
     curr_ptr_ += size;
   }
   virtual void Seek(size_t pos) {
@@ -149,7 +149,7 @@ struct MemoryBufferStream : public ISeekStream {
     utils::Assert(curr_ptr_ <= p_buffer_->length(),
                   "read can not have position excceed buffer length");
     size_t nread = std::min(p_buffer_->length() - curr_ptr_, size);
-    if (nread != 0) memcpy(ptr, &(*p_buffer_)[0] + curr_ptr_, nread);
+    if (nread != 0) std::memcpy(ptr, &(*p_buffer_)[0] + curr_ptr_, nread);
     curr_ptr_ += nread;
     return nread;
   }
@@ -158,7 +158,7 @@ struct MemoryBufferStream : public ISeekStream {
     if (curr_ptr_ + size > p_buffer_->length()) {
       p_buffer_->resize(curr_ptr_+size);
     }
-    memcpy(&(*p_buffer_)[0] + curr_ptr_, ptr, size); 
+    std::memcpy(&(*p_buffer_)[0] + curr_ptr_, ptr, size); 
     curr_ptr_ += size;
   }
   virtual void Seek(size_t pos) {
@@ -178,7 +178,7 @@ struct MemoryBufferStream : public ISeekStream {
 /*! \brief implementation of file i/o stream */
 class FileStream : public ISeekStream {
  public:
-  explicit FileStream(FILE *fp) : fp(fp) {}
+  explicit FileStream(std::FILE *fp) : fp(fp) {}
   explicit FileStream(void) {
     this->fp = NULL;
   }
@@ -201,7 +201,7 @@ class FileStream : public ISeekStream {
   }
 
  private:
-  FILE *fp;
+  std::FILE *fp;
 };
 }  // namespace utils
 }  // namespace xgboost