mfbt/decimal/comparison-with-nan.patch
author Jonathan Watt <jwatt@jwatt.org>
Mon, 06 May 2013 00:23:18 +0100
changeset 141893 f40200a441622c0c73be1eb5789b9c185da46cb5
child 320789 4929064f96e0bb142bf82e36230d1b0c8f570c9d
permissions -rw-r--r--
Bug 853525, part 9 - Changes to Decimal code as a series of patches for update.sh. r=Waldo

diff --git a/mfbt/decimal/Decimal.cpp b/mfbt/decimal/Decimal.cpp
--- a/mfbt/decimal/Decimal.cpp
+++ b/mfbt/decimal/Decimal.cpp
@@ -505,21 +505,25 @@ Decimal Decimal::operator/(const Decimal
     if (remainder > divisor / 2)
         ++result;
 
     return Decimal(resultSign, resultExponent, result);
 }
 
 bool Decimal::operator==(const Decimal& rhs) const
 {
+    if (isNaN() || rhs.isNaN())
+        return false;
     return m_data == rhs.m_data || compareTo(rhs).isZero();
 }
 
 bool Decimal::operator!=(const Decimal& rhs) const
 {
+    if (isNaN() || rhs.isNaN())
+        return true;
     if (m_data == rhs.m_data)
         return false;
     const Decimal result = compareTo(rhs);
     if (result.isNaN())
         return false;
     return !result.isZero();
 }
 
@@ -528,16 +532,18 @@ bool Decimal::operator<(const Decimal& r
     const Decimal result = compareTo(rhs);
     if (result.isNaN())
         return false;
     return !result.isZero() && result.isNegative();
 }
 
 bool Decimal::operator<=(const Decimal& rhs) const
 {
+    if (isNaN() || rhs.isNaN())
+        return false;
     if (m_data == rhs.m_data)
         return true;
     const Decimal result = compareTo(rhs);
     if (result.isNaN())
         return false;
     return result.isZero() || result.isNegative();
 }
 
@@ -546,16 +552,18 @@ bool Decimal::operator>(const Decimal& r
     const Decimal result = compareTo(rhs);
     if (result.isNaN())
         return false;
     return !result.isZero() && result.isPositive();
 }
 
 bool Decimal::operator>=(const Decimal& rhs) const
 {
+    if (isNaN() || rhs.isNaN())
+        return false;
     if (m_data == rhs.m_data)
         return true;
     const Decimal result = compareTo(rhs);
     if (result.isNaN())
         return false;
     return result.isZero() || !result.isNegative();
 }