Fix -Wfloat-equal warnings in Value::operator== and valuetest

include/rapidjson/document.h

@@ -700,8 +700,10 @@ public:
             return StringEqual(rhs);
 
         case kNumberType:
-            if (IsDouble() || rhs.IsDouble())
-                return GetDouble() == rhs.GetDouble(); // May convert one operand from integer to double.
+            if (IsDouble() || rhs.IsDouble()) {
+                float delta = GetDouble() - rhs.GetDouble();    // May convert one operand from integer to double.
+                return delta >= 0.0 && delta <= 0.0;            // Prevent -Wfloat-equal
+            }
             else
                 return data_.n.u64 == rhs.data_.n.u64;
 

test/unittest/valuetest.cpp

@@ -339,7 +339,7 @@ TEST(Value, Int) {
     EXPECT_EQ(1234u, x.GetUint());
     EXPECT_EQ(1234, x.GetInt64());
     EXPECT_EQ(1234u, x.GetUint64());
-    EXPECT_EQ(1234, x.GetDouble());
+    EXPECT_NEAR(1234.0, x.GetDouble(), 0.0);
     //EXPECT_EQ(1234, (int)x);
     //EXPECT_EQ(1234, (unsigned)x);
     //EXPECT_EQ(1234, (int64_t)x);
@@ -397,7 +397,7 @@ TEST(Value, Uint) {
     EXPECT_TRUE(x.IsUint());
     EXPECT_TRUE(x.IsInt64());
     EXPECT_TRUE(x.IsUint64());
-    EXPECT_EQ(1234.0, x.GetDouble());   // Number can always be cast as double but !IsDouble().
+    EXPECT_NEAR(1234.0, x.GetDouble(), 0.0);   // Number can always be cast as double but !IsDouble().
 
     EXPECT_FALSE(x.IsDouble());
     EXPECT_FALSE(x.IsNull());