From a74183ddb4ab8383bfe214b3745eb8a0a99ee47a Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Thu, 25 Jun 2015 12:56:45 +0800
Subject: let HTK I/O implementation be a single package

---
 tnet_io/KaldiLib/MathAux.h | 117 ---------------------------------------------
 1 file changed, 117 deletions(-)
 delete mode 100644 tnet_io/KaldiLib/MathAux.h

(limited to 'tnet_io/KaldiLib/MathAux.h')

diff --git a/tnet_io/KaldiLib/MathAux.h b/tnet_io/KaldiLib/MathAux.h
deleted file mode 100644
index c08e836..0000000
--- a/tnet_io/KaldiLib/MathAux.h
+++ /dev/null
@@ -1,117 +0,0 @@
-#ifndef TNet_MathAux_h
-#define TNet_MathAux_h
-
-#include <cmath>
-
-
-#if !defined(SQR)
-# define SQR(x) ((x) * (x))
-#endif
-
-
-#if !defined(LOG_0)
-# define LOG_0 (-1.0e10)
-#endif
-
-#if !defined(LOG_MIN)
-# define LOG_MIN   (0.5 * LOG_0)
-#endif
-
-
-#ifndef DBL_EPSILON
-#define DBL_EPSILON 2.2204460492503131e-16
-#endif
-
-
-#ifndef M_PI
-#  define M_PI 3.1415926535897932384626433832795
-#endif
-
-#define M_LOG_2PI 1.8378770664093454835606594728112
-
-
-#if DOUBLEPRECISION
-#  define FLOAT double
-#  define EPSILON DBL_EPSILON
-#  define FLOAT_FMT "%lg"
-#  define swapFLOAT swap8
-#  define _ABS  fabs
-#  define _COS  cos
-#  define _EXP  exp
-#  define _LOG  log
-#  define _SQRT sqrt
-#else
-#  define FLOAT float
-#  define EPSILON FLT_EPSILON
-#  define FLOAT_FMT "%g"
-#  define swapFLOAT swap4
-#  define _ABS  fabsf
-#  define _COS  cosf
-#  define _EXP  expf
-#  define _LOG  logf
-#  define _SQRT sqrtf
-#endif
-
-namespace TNet
-{
-  inline float frand(){ // random between 0 and 1.
-	return (float(rand()) + 1.0f) / (float(RAND_MAX)+2.0f);
-  }
-  inline float gauss_rand(){
-	return _SQRT( -2.0f * _LOG(frand()) ) * _COS(2.0f*float(M_PI)*frand());
-  }
-  
-  static const double gMinLogDiff = log(DBL_EPSILON);
-  
-  //***************************************************************************
-  //***************************************************************************
-  inline double
-  LogAdd(double x, double y)
-  {
-    double diff;
-  
-    if (x < y) {
-      diff = x - y;
-      x = y;
-    } else {
-      diff = y - x;
-    }
-  
-    double res;
-    if (x >= LOG_MIN) {
-      if (diff >= gMinLogDiff) {
-        res = x + log(1.0 + exp(diff));
-      } else {
-        res = x;
-      }
-    } else {
-      res = LOG_0;
-    }
-    return res;
-  } 
-
-
-  //***************************************************************************
-  //***************************************************************************
-  inline double
-  LogSub(double x, double y) // returns exp(x) - exp(y).  Throws exception if y>=x.
-  {
-
-    if(y >= x){
-      if(y==x)  return LOG_0;
-      else throw std::runtime_error("LogSub: cannot subtract a larger from a smaller number.");
-    }
-
-    double diff = y - x;  // Will be negative.
-    
-    double res = x + log(1.0 - exp(diff));
-
-    if(res != res) // test for res==NaN.. could happen if diff ~0.0, so 1.0-exp(diff) == 0.0 to machine precision.
-      res = LOG_0;
-    return res;
-  } 
-
-} // namespace TNet
-
-
-#endif
-- 
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