fix #178 do not check leading zero for readDouble

Author: taowen

src/main/java/com/jsoniter/IterImpl.java

@@ -393,10 +393,6 @@ static final int readInt(final JsonIterator iter, final byte c) throws IOExcepti
 
     static final long readLong(final JsonIterator iter, final byte c) throws IOException {
         long ind = IterImplNumber.intDigits[c];
-        if (ind == 0) {
-            IterImplForStreaming.assertNotLeadingZero(iter);
-            return 0;
-        }
         if (ind == IterImplNumber.INVALID_CHAR_FOR_NUMBER) {
             throw iter.reportError("readLong", "expect 0~9");
         }

src/main/java/com/jsoniter/IterImplNumber.java

@@ -91,8 +91,17 @@ public static final int readInt(final JsonIterator iter) throws IOException {
     public static final long readLong(JsonIterator iter) throws IOException {
         byte c = IterImpl.nextToken(iter);
         if (c == '-') {
-            return IterImpl.readLong(iter, IterImpl.readByte(iter));
+            c = IterImpl.readByte(iter);
+            if (IterImplNumber.intDigits[c] == 0) {
+                IterImplForStreaming.assertNotLeadingZero(iter);
+                return 0;
+            }
+            return IterImpl.readLong(iter, c);
         } else {
+            if (IterImplNumber.intDigits[c] == 0) {
+                IterImplForStreaming.assertNotLeadingZero(iter);
+                return 0;
+            }
             long val = IterImpl.readLong(iter, c);
             if (val == Long.MIN_VALUE) {
                 throw iter.reportError("readLong", "value is too large for long");