From db960a8bba81df3217660ec5a96d73e0d6baa01b Mon Sep 17 00:00:00 2001
From: Kenneth Heafield <github@kheafield.com>
Date: Wed, 24 Apr 2013 10:12:41 +0100
Subject: KenLM 0831569c3137536165b107c6841603c725dfa2b1

---
 klm/lm/builder/print.cc | 74 ++-----------------------------------------------
 1 file changed, 3 insertions(+), 71 deletions(-)

(limited to 'klm/lm/builder/print.cc')

diff --git a/klm/lm/builder/print.cc b/klm/lm/builder/print.cc
index b0323221..84bd81ca 100644
--- a/klm/lm/builder/print.cc
+++ b/klm/lm/builder/print.cc
@@ -1,15 +1,11 @@
 #include "lm/builder/print.hh"
 
-#include "util/double-conversion/double-conversion.h"
-#include "util/double-conversion/utils.h"
+#include "util/fake_ofstream.hh"
 #include "util/file.hh"
 #include "util/mmap.hh"
 #include "util/scoped.hh"
 #include "util/stream/timer.hh"
 
-#define BOOST_LEXICAL_CAST_ASSUME_C_LOCALE
-#include <boost/lexical_cast.hpp>
-
 #include <sstream>
 
 #include <string.h>
@@ -28,71 +24,6 @@ VocabReconstitute::VocabReconstitute(int fd) {
   map_.push_back(i);
 }
 
-namespace {
-class OutputManager {
-  public:
-    static const std::size_t kOutBuf = 1048576;
-
-    // Does not take ownership of out.
-    explicit OutputManager(int out)
-      : buf_(util::MallocOrThrow(kOutBuf)),
-        builder_(static_cast<char*>(buf_.get()), kOutBuf),
-        // Mostly the default but with inf instead.  And no flags.
-        convert_(double_conversion::DoubleToStringConverter::NO_FLAGS, "inf", "NaN", 'e', -6, 21, 6, 0),
-        fd_(out) {}
-
-    ~OutputManager() {
-      Flush();
-    }
-
-    OutputManager &operator<<(float value) {
-      // Odd, but this is the largest number found in the comments.
-      EnsureRemaining(double_conversion::DoubleToStringConverter::kMaxPrecisionDigits + 8);
-      convert_.ToShortestSingle(value, &builder_);
-      return *this;
-    }
-
-    OutputManager &operator<<(StringPiece str) {
-      if (str.size() > kOutBuf) {
-        Flush();
-        util::WriteOrThrow(fd_, str.data(), str.size());
-      } else {
-        EnsureRemaining(str.size());
-        builder_.AddSubstring(str.data(), str.size());
-      }
-      return *this;
-    }
-
-    // Inefficient!
-    OutputManager &operator<<(unsigned val) {
-      return *this << boost::lexical_cast<std::string>(val);
-    }
-
-    OutputManager &operator<<(char c) {
-      EnsureRemaining(1);
-      builder_.AddCharacter(c);
-      return *this;
-    }
-
-    void Flush() {
-      util::WriteOrThrow(fd_, buf_.get(), builder_.position());
-      builder_.Reset();
-    }
-
-  private:
-    void EnsureRemaining(std::size_t amount) {
-      if (static_cast<std::size_t>(builder_.size() - builder_.position()) < amount) {
-        Flush();
-      }
-    }
-
-    util::scoped_malloc buf_;
-    double_conversion::StringBuilder builder_;
-    double_conversion::DoubleToStringConverter convert_;
-    int fd_;
-};
-} // namespace
-
 PrintARPA::PrintARPA(const VocabReconstitute &vocab, const std::vector<uint64_t> &counts, const HeaderInfo* header_info, int out_fd) 
   : vocab_(vocab), out_fd_(out_fd) {
   std::stringstream stream;
@@ -112,8 +43,9 @@ PrintARPA::PrintARPA(const VocabReconstitute &vocab, const std::vector<uint64_t>
 }
 
 void PrintARPA::Run(const ChainPositions &positions) {
+  util::scoped_fd closer(out_fd_);
   UTIL_TIMER("(%w s) Wrote ARPA file\n");
-  OutputManager out(out_fd_);
+  util::FakeOFStream out(out_fd_);
   for (unsigned order = 1; order <= positions.size(); ++order) {
     out << "\\" << order << "-grams:" << '\n';
     for (NGramStream stream(positions[order - 1]); stream; ++stream) {
-- 
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