diff --git a/core/fxcrt/fx_system.h b/core/fxcrt/fx_system.h
index a087898..4c938d9 100644
--- a/core/fxcrt/fx_system.h
+++ b/core/fxcrt/fx_system.h
@@ -69,7 +69,6 @@
 
 typedef void* FX_POSITION;  // Keep until fxcrt containers gone
 typedef float FX_FLOAT;     // Keep, allow upgrade to doubles.
-typedef double FX_DOUBLE;   // Keep, allow downgrade to floats.
 
 #define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
 #define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
diff --git a/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp b/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp
index 3561808..3ecea16 100644
--- a/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp
+++ b/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp
@@ -522,7 +522,7 @@
     return;
   }
 
-  FX_DOUBLE dValue = ValueToDouble(pThis, argOne.get());
+  double dValue = ValueToDouble(pThis, argOne.get());
   if (dValue < 0)
     dValue = -dValue;
 
@@ -541,7 +541,7 @@
 
   v8::Isolate* pIsolate = ToJSContext(pThis, nullptr)->GetScriptRuntime();
   uint32_t uCount = 0;
-  FX_DOUBLE dSum = 0.0;
+  double dSum = 0.0;
   for (int32_t i = 0; i < argc; i++) {
     std::unique_ptr<CFXJSE_Value> argValue = args.GetValue(i);
     if (argValue->IsNull())
@@ -695,7 +695,7 @@
   CXFA_FM2JSContext* pContext = ToJSContext(pThis, nullptr);
   v8::Isolate* pIsolate = pContext->GetScriptRuntime();
   uint32_t uCount = 0;
-  FX_DOUBLE dMaxValue = 0.0;
+  double dMaxValue = 0.0;
   for (int32_t i = 0; i < args.GetLength(); i++) {
     std::unique_ptr<CFXJSE_Value> argValue = args.GetValue(i);
     if (argValue->IsNull())
@@ -723,7 +723,7 @@
             continue;
 
           uCount++;
-          FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+          double dValue = ValueToDouble(pThis, newPropertyValue.get());
           dMaxValue = (uCount == 1) ? dValue : std::max(dMaxValue, dValue);
         }
       } else {
@@ -735,7 +735,7 @@
             continue;
 
           uCount++;
-          FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+          double dValue = ValueToDouble(pThis, newPropertyValue.get());
           dMaxValue = (uCount == 1) ? dValue : std::max(dMaxValue, dValue);
         }
       }
@@ -746,11 +746,11 @@
         continue;
 
       uCount++;
-      FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+      double dValue = ValueToDouble(pThis, newPropertyValue.get());
       dMaxValue = (uCount == 1) ? dValue : std::max(dMaxValue, dValue);
     } else {
       uCount++;
-      FX_DOUBLE dValue = ValueToDouble(pThis, argValue.get());
+      double dValue = ValueToDouble(pThis, argValue.get());
       dMaxValue = (uCount == 1) ? dValue : std::max(dMaxValue, dValue);
     }
   }
@@ -769,7 +769,7 @@
   CXFA_FM2JSContext* pContext = ToJSContext(pThis, nullptr);
   v8::Isolate* pIsolate = pContext->GetScriptRuntime();
   uint32_t uCount = 0;
-  FX_DOUBLE dMinValue = 0.0;
+  double dMinValue = 0.0;
   for (int32_t i = 0; i < args.GetLength(); i++) {
     std::unique_ptr<CFXJSE_Value> argValue = args.GetValue(i);
     if (argValue->IsNull())
@@ -797,7 +797,7 @@
             continue;
 
           uCount++;
-          FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+          double dValue = ValueToDouble(pThis, newPropertyValue.get());
           dMinValue = uCount == 1 ? dValue : std::min(dMinValue, dValue);
         }
       } else {
@@ -809,7 +809,7 @@
             continue;
 
           uCount++;
-          FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+          double dValue = ValueToDouble(pThis, newPropertyValue.get());
           dMinValue = uCount == 1 ? dValue : std::min(dMinValue, dValue);
         }
       }
@@ -820,11 +820,11 @@
         continue;
 
       uCount++;
-      FX_DOUBLE dValue = ValueToDouble(pThis, newPropertyValue.get());
+      double dValue = ValueToDouble(pThis, newPropertyValue.get());
       dMinValue = uCount == 1 ? dValue : std::min(dMinValue, dValue);
     } else {
       uCount++;
-      FX_DOUBLE dValue = ValueToDouble(pThis, argValue.get());
+      double dValue = ValueToDouble(pThis, argValue.get());
       dMinValue = uCount == 1 ? dValue : std::min(dMinValue, dValue);
     }
   }
@@ -854,9 +854,9 @@
   }
 
   bool argOneResult;
-  FX_DOUBLE dDividend = ExtractDouble(pThis, argOne.get(), &argOneResult);
+  double dDividend = ExtractDouble(pThis, argOne.get(), &argOneResult);
   bool argTwoResult;
-  FX_DOUBLE dDivisor = ExtractDouble(pThis, argTwo.get(), &argTwoResult);
+  double dDivisor = ExtractDouble(pThis, argTwo.get(), &argTwoResult);
   if (!argOneResult || !argTwoResult) {
     pContext->ThrowArgumentMismatchException();
     return;
@@ -889,7 +889,7 @@
   }
 
   bool dValueRet;
-  FX_DOUBLE dValue = ExtractDouble(pThis, argOne.get(), &dValueRet);
+  double dValue = ExtractDouble(pThis, argOne.get(), &dValueRet);
   if (!dValueRet) {
     pContext->ThrowArgumentMismatchException();
     return;
@@ -904,7 +904,7 @@
     }
 
     bool dPrecisionRet;
-    FX_DOUBLE dPrecision = ExtractDouble(pThis, argTwo.get(), &dPrecisionRet);
+    double dPrecision = ExtractDouble(pThis, argTwo.get(), &dPrecisionRet);
     if (!dPrecisionRet) {
       pContext->ThrowArgumentMismatchException();
       return;
@@ -932,7 +932,7 @@
   CXFA_FM2JSContext* pContext = ToJSContext(pThis, nullptr);
   v8::Isolate* pIsolate = pContext->GetScriptRuntime();
   uint32_t uCount = 0;
-  FX_DOUBLE dSum = 0.0;
+  double dSum = 0.0;
   for (int32_t i = 0; i < argc; i++) {
     std::unique_ptr<CFXJSE_Value> argValue = args.GetValue(i);
     if (argValue->IsNull())
@@ -2354,23 +2354,22 @@
     return;
   }
 
-  FX_DOUBLE nPrincipal = ValueToDouble(pThis, argOne.get());
-  FX_DOUBLE nPayment = ValueToDouble(pThis, argTwo.get());
-  FX_DOUBLE nPeriods = ValueToDouble(pThis, argThree.get());
+  double nPrincipal = ValueToDouble(pThis, argOne.get());
+  double nPayment = ValueToDouble(pThis, argTwo.get());
+  double nPeriods = ValueToDouble(pThis, argThree.get());
   if (nPrincipal <= 0 || nPayment <= 0 || nPeriods <= 0) {
     pContext->ThrowArgumentMismatchException();
     return;
   }
 
-  FX_DOUBLE r =
-      2 * (nPeriods * nPayment - nPrincipal) / (nPeriods * nPrincipal);
-  FX_DOUBLE nTemp = 1;
+  double r = 2 * (nPeriods * nPayment - nPrincipal) / (nPeriods * nPrincipal);
+  double nTemp = 1;
   for (int32_t i = 0; i < nPeriods; ++i)
     nTemp *= (1 + r);
 
-  FX_DOUBLE nRet = r * nTemp / (nTemp - 1) - nPayment / nPrincipal;
+  double nRet = r * nTemp / (nTemp - 1) - nPayment / nPrincipal;
   while (fabs(nRet) > kFinancialPrecision) {
-    FX_DOUBLE nDerivative =
+    double nDerivative =
         ((nTemp + r * nPeriods * (nTemp / (1 + r))) * (nTemp - 1) -
          (r * nTemp * nPeriods * (nTemp / (1 + r)))) /
         ((nTemp - 1) * (nTemp - 1));
@@ -2440,17 +2439,17 @@
     return;
   }
 
-  FX_DOUBLE nAmount = ValueToDouble(pThis, argOne.get());
-  FX_DOUBLE nRate = ValueToDouble(pThis, argTwo.get());
-  FX_DOUBLE nPeriod = ValueToDouble(pThis, argThree.get());
+  double nAmount = ValueToDouble(pThis, argOne.get());
+  double nRate = ValueToDouble(pThis, argTwo.get());
+  double nPeriod = ValueToDouble(pThis, argThree.get());
   if ((nRate < 0) || (nPeriod <= 0) || (nAmount <= 0)) {
     pContext->ThrowArgumentMismatchException();
     return;
   }
 
-  FX_DOUBLE dResult = 0;
+  double dResult = 0;
   if (nRate) {
-    FX_DOUBLE nTemp = 1;
+    double nTemp = 1;
     for (int i = 0; i < nPeriod; ++i) {
       nTemp *= 1 + nRate;
     }
@@ -2539,24 +2538,24 @@
     }
   }
 
-  FX_DOUBLE nRate = ValueToDouble(pThis, argValues[0].get());
+  double nRate = ValueToDouble(pThis, argValues[0].get());
   if (nRate <= 0) {
     pContext->ThrowArgumentMismatchException();
     return;
   }
 
-  std::vector<FX_DOUBLE> data(argc - 1);
+  std::vector<double> data(argc - 1);
   for (int32_t i = 1; i < argc; i++)
     data.push_back(ValueToDouble(pThis, argValues[i].get()));
 
-  FX_DOUBLE nSum = 0;
+  double nSum = 0;
   int32_t iIndex = 0;
   for (int32_t i = 0; i < argc - 1; i++) {
-    FX_DOUBLE nTemp = 1;
+    double nTemp = 1;
     for (int32_t j = 0; j <= i; j++)
       nTemp *= 1 + nRate;
 
-    FX_DOUBLE nNum = data[iIndex++];
+    double nNum = data[iIndex++];
     nSum += nNum / nTemp;
   }
   args.GetReturnValue()->SetDouble(nSum);
@@ -2674,15 +2673,15 @@
     return;
   }
 
-  FX_DOUBLE nAmount = ValueToDouble(pThis, argOne.get());
-  FX_DOUBLE nRate = ValueToDouble(pThis, argTwo.get());
-  FX_DOUBLE nPeriod = ValueToDouble(pThis, argThree.get());
+  double nAmount = ValueToDouble(pThis, argOne.get());
+  double nRate = ValueToDouble(pThis, argTwo.get());
+  double nPeriod = ValueToDouble(pThis, argThree.get());
   if ((nAmount <= 0) || (nRate < 0) || (nPeriod <= 0)) {
     pContext->ThrowArgumentMismatchException();
     return;
   }
 
-  FX_DOUBLE nTemp = 1;
+  double nTemp = 1;
   for (int32_t i = 0; i < nPeriod; ++i)
     nTemp *= 1 + nRate;
 
@@ -3172,7 +3171,7 @@
   }
 
   char* pTemp = nullptr;
-  FX_DOUBLE dFirstNumber = strtod(pData, &pTemp);
+  double dFirstNumber = strtod(pData, &pTemp);
   while (IsWhitespace(pData[u]))
     ++u;
 
@@ -3219,7 +3218,7 @@
     strUnit = strFirstUnit;
   }
 
-  FX_DOUBLE dResult = 0;
+  double dResult = 0;
   if (strFirstUnit == "in" || strFirstUnit == "inches") {
     if (strUnit == "mm" || strUnit == "millimeters")
       dResult = dFirstNumber * 25.4;
@@ -5074,8 +5073,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger((first == second) ? 1 : 0);
 }
 
@@ -5107,8 +5106,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger(first != second);
 }
 
@@ -5161,8 +5160,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger((first < second) ? 1 : 0);
 }
 
@@ -5189,8 +5188,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger((first <= second) ? 1 : 0);
 }
 
@@ -5216,8 +5215,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger((first > second) ? 1 : 0);
 }
 
@@ -5244,8 +5243,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetInteger((first >= second) ? 1 : 0);
 }
 
@@ -5266,8 +5265,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetDouble(first + second);
 }
 
@@ -5287,8 +5286,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetDouble(first - second);
 }
 
@@ -5308,8 +5307,8 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double first = ValueToDouble(pThis, argFirst.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   args.GetReturnValue()->SetDouble(first * second);
 }
 
@@ -5330,13 +5329,13 @@
     return;
   }
 
-  FX_DOUBLE second = ValueToDouble(pThis, argSecond.get());
+  double second = ValueToDouble(pThis, argSecond.get());
   if (second == 0.0) {
     pContext->ThrowDivideByZeroException();
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argFirst.get());
+  double first = ValueToDouble(pThis, argFirst.get());
   args.GetReturnValue()->SetDouble(first / second);
 }
 
@@ -5389,7 +5388,7 @@
     return;
   }
 
-  FX_DOUBLE first = ValueToDouble(pThis, argOne.get());
+  double first = ValueToDouble(pThis, argOne.get());
   args.GetReturnValue()->SetInteger((first == 0.0) ? 1 : 0);
 }
 
@@ -6257,8 +6256,8 @@
 }
 
 // static
-FX_DOUBLE CXFA_FM2JSContext::ValueToDouble(CFXJSE_Value* pThis,
-                                           CFXJSE_Value* arg) {
+double CXFA_FM2JSContext::ValueToDouble(CFXJSE_Value* pThis,
+                                        CFXJSE_Value* arg) {
   if (!arg)
     return 0;
 
diff --git a/xfa/fxfa/fm2js/xfa_fm2jscontext.h b/xfa/fxfa/fm2js/xfa_fm2jscontext.h
index b56a021..5008ced 100644
--- a/xfa/fxfa/fm2js/xfa_fm2jscontext.h
+++ b/xfa/fxfa/fm2js/xfa_fm2jscontext.h
@@ -437,7 +437,7 @@
   static bool ValueIsNull(CFXJSE_Value* pThis, CFXJSE_Value* pValue);
   static int32_t ValueToInteger(CFXJSE_Value* pThis, CFXJSE_Value* pValue);
   static FX_FLOAT ValueToFloat(CFXJSE_Value* pThis, CFXJSE_Value* pValue);
-  static FX_DOUBLE ValueToDouble(CFXJSE_Value* pThis, CFXJSE_Value* pValue);
+  static double ValueToDouble(CFXJSE_Value* pThis, CFXJSE_Value* pValue);
   static void ValueToUTF8String(CFXJSE_Value* pValue,
                                 CFX_ByteString& outputValue);
   static double ExtractDouble(CFXJSE_Value* pThis,
diff --git a/xfa/fxfa/fm2js/xfa_lexer.cpp b/xfa/fxfa/fm2js/xfa_lexer.cpp
index e83877e..5d3f6f5 100644
--- a/xfa/fxfa/fm2js/xfa_lexer.cpp
+++ b/xfa/fxfa/fm2js/xfa_lexer.cpp
@@ -38,7 +38,7 @@
   }
   static bool isAvalid(const wchar_t* p, bool flag = 0);
   static bool string2number(const wchar_t* s,
-                            FX_DOUBLE* pValue,
+                            double* pValue,
                             const wchar_t*& pEnd);
   static bool isUnicodeAlpha(uint16_t ch);
 };
@@ -60,7 +60,7 @@
 }
 
 inline bool XFA_FMDChar::string2number(const wchar_t* s,
-                                       FX_DOUBLE* pValue,
+                                       double* pValue,
                                        const wchar_t*& pEnd) {
   if (s) {
     *pValue = wcstod((wchar_t*)s, (wchar_t**)&pEnd);
@@ -403,7 +403,7 @@
 uint32_t CXFA_FMLexer::Number(CXFA_FMToken* t,
                               const wchar_t* p,
                               const wchar_t*& pEnd) {
-  FX_DOUBLE number = 0;
+  double number = 0;
   if (XFA_FMDChar::string2number(p, &number, pEnd)) {
     return 1;
   }
diff --git a/xfa/fxfa/parser/xfa_localevalue.cpp b/xfa/fxfa/parser/xfa_localevalue.cpp
index 6dd02e6..b011f0f 100644
--- a/xfa/fxfa/parser/xfa_localevalue.cpp
+++ b/xfa/fxfa/parser/xfa_localevalue.cpp
@@ -17,22 +17,22 @@
 #include "xfa/fxfa/parser/xfa_object.h"
 #include "xfa/fxfa/parser/xfa_utils.h"
 
-static const FX_DOUBLE fraction_scales[] = {0.1,
-                                            0.01,
-                                            0.001,
-                                            0.0001,
-                                            0.00001,
-                                            0.000001,
-                                            0.0000001,
-                                            0.00000001,
-                                            0.000000001,
-                                            0.0000000001,
-                                            0.00000000001,
-                                            0.000000000001,
-                                            0.0000000000001,
-                                            0.00000000000001,
-                                            0.000000000000001,
-                                            0.0000000000000001};
+static const double fraction_scales[] = {0.1,
+                                         0.01,
+                                         0.001,
+                                         0.0001,
+                                         0.00001,
+                                         0.000001,
+                                         0.0000001,
+                                         0.00000001,
+                                         0.000000001,
+                                         0.0000000001,
+                                         0.00000000001,
+                                         0.000000000001,
+                                         0.0000000000001,
+                                         0.00000000000001,
+                                         0.000000000000001,
+                                         0.0000000000000001};
 CXFA_LocaleValue::CXFA_LocaleValue() {
   m_dwType = XFA_VT_NULL;
   m_bValid = true;
@@ -286,7 +286,7 @@
   }
   return 0;
 }
-FX_DOUBLE CXFA_LocaleValue::GetDoubleNum() const {
+double CXFA_LocaleValue::GetDoubleNum() const {
   if (m_bValid && (m_dwType == XFA_VT_BOOLEAN || m_dwType == XFA_VT_INTEGER ||
                    m_dwType == XFA_VT_DECIMAL || m_dwType == XFA_VT_FLOAT)) {
     int64_t nIntegral = 0;
@@ -320,14 +320,14 @@
     }
     nIntegral = bNegative ? -nIntegral : nIntegral;
     int32_t scale = 0;
-    FX_DOUBLE fraction = 0.0;
+    double fraction = 0.0;
     if (cc < len && str[cc] == '.') {
       cc++;
       while (cc < len) {
         fraction += fraction_scales[scale] * (str[cc] - '0');
         scale++;
         cc++;
-        if (scale == sizeof fraction_scales / sizeof(FX_DOUBLE) ||
+        if (scale == sizeof fraction_scales / sizeof(double) ||
             !FXSYS_isDecimalDigit(str[cc])) {
           break;
         }
@@ -353,7 +353,7 @@
       }
       nExponent = bExpSign ? -nExponent : nExponent;
     }
-    FX_DOUBLE dValue = (dwFractional / 4294967296.0);
+    double dValue = (dwFractional / 4294967296.0);
     dValue = nIntegral + (nIntegral >= 0 ? dValue : -dValue);
     if (nExponent != 0) {
       dValue *= FXSYS_pow(10, (FX_FLOAT)nExponent);
@@ -406,7 +406,7 @@
 }
 bool CXFA_LocaleValue::SetNum(FX_FLOAT fNum) {
   m_dwType = XFA_VT_FLOAT;
-  m_wsValue.Format(L"%.8g", (FX_DOUBLE)fNum);
+  m_wsValue.Format(L"%.8g", (double)fNum);
   return true;
 }
 bool CXFA_LocaleValue::SetNum(const CFX_WideString& wsNum,
diff --git a/xfa/fxfa/parser/xfa_localevalue.h b/xfa/fxfa/parser/xfa_localevalue.h
index dbc3513..084f63c 100644
--- a/xfa/fxfa/parser/xfa_localevalue.h
+++ b/xfa/fxfa/parser/xfa_localevalue.h
@@ -71,7 +71,7 @@
   void SetValue(const CFX_WideString& wsValue, uint32_t dwType);
   CFX_WideString GetText() const;
   FX_FLOAT GetNum() const;
-  FX_DOUBLE GetDoubleNum() const;
+  double GetDoubleNum() const;
   CFX_Unitime GetDate() const;
   CFX_Unitime GetTime() const;
   CFX_Unitime GetDateTime() const;
diff --git a/xfa/fxfa/parser/xfa_utils.cpp b/xfa/fxfa/parser/xfa_utils.cpp
index ef7e939..c419026 100644
--- a/xfa/fxfa/parser/xfa_utils.cpp
+++ b/xfa/fxfa/parser/xfa_utils.cpp
@@ -17,24 +17,24 @@
 
 namespace {
 
-const FX_DOUBLE fraction_scales[] = {0.1,
-                                     0.01,
-                                     0.001,
-                                     0.0001,
-                                     0.00001,
-                                     0.000001,
-                                     0.0000001,
-                                     0.00000001,
-                                     0.000000001,
-                                     0.0000000001,
-                                     0.00000000001,
-                                     0.000000000001,
-                                     0.0000000000001,
-                                     0.00000000000001,
-                                     0.000000000000001,
-                                     0.0000000000000001};
+const double fraction_scales[] = {0.1,
+                                  0.01,
+                                  0.001,
+                                  0.0001,
+                                  0.00001,
+                                  0.000001,
+                                  0.0000001,
+                                  0.00000001,
+                                  0.000000001,
+                                  0.0000000001,
+                                  0.00000000001,
+                                  0.000000000001,
+                                  0.0000000000001,
+                                  0.00000000000001,
+                                  0.000000000000001,
+                                  0.0000000000000001};
 
-FX_DOUBLE WideStringToDouble(const CFX_WideString& wsStringVal) {
+double WideStringToDouble(const CFX_WideString& wsStringVal) {
   CFX_WideString wsValue = wsStringVal;
   wsValue.TrimLeft();
   wsValue.TrimRight();
@@ -67,7 +67,7 @@
   }
   nIntegral = bNegative ? -nIntegral : nIntegral;
   int32_t scale = 0;
-  FX_DOUBLE fraction = 0.0;
+  double fraction = 0.0;
   if (cc < len && str[cc] == '.') {
     cc++;
     while (cc < len) {
@@ -77,8 +77,8 @@
       if (cc == len) {
         break;
       }
-      if (scale == sizeof(fraction_scales) / sizeof(FX_DOUBLE) ||
-          str[cc] == 'E' || str[cc] == 'e') {
+      if (scale == sizeof(fraction_scales) / sizeof(double) || str[cc] == 'E' ||
+          str[cc] == 'e') {
         break;
       }
       if (!FXSYS_isDecimalDigit(str[cc])) {
@@ -106,7 +106,7 @@
     }
     nExponent = bExpSign ? -nExponent : nExponent;
   }
-  FX_DOUBLE dValue = (dwFractional / 4294967296.0);
+  double dValue = (dwFractional / 4294967296.0);
   dValue = nIntegral + (nIntegral >= 0 ? dValue : -dValue);
   if (nExponent != 0) {
     dValue *= FXSYS_pow(10, (FX_FLOAT)nExponent);
@@ -221,7 +221,7 @@
   return bRet;
 }
 
-FX_DOUBLE XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal) {
+double XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal) {
   CFX_WideString wsValue = CFX_WideString::FromUTF8(szStringVal);
   return WideStringToDouble(wsValue);
 }
diff --git a/xfa/fxfa/parser/xfa_utils.h b/xfa/fxfa/parser/xfa_utils.h
index a5bdeea..73f6101 100644
--- a/xfa/fxfa/parser/xfa_utils.h
+++ b/xfa/fxfa/parser/xfa_utils.h
@@ -142,7 +142,7 @@
 };
 
 CXFA_LocaleValue XFA_GetLocaleValue(CXFA_WidgetData* pWidgetData);
-FX_DOUBLE XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal);
+double XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal);
 int32_t XFA_MapRotation(int32_t nRotation);
 
 bool XFA_RecognizeRichText(CFDE_XMLElement* pRichTextXMLNode);