fix #144, parse max int/long

Author: taowen

src/main/java/com/jsoniter/IterImplForStreaming.java

@@ -481,7 +481,7 @@ static long readLongSlowPath(JsonIterator iter, long value) throws IOException {
                     // overflow
                     if (value == Long.MIN_VALUE) {
                         // if there is more number following, subsequent read will fail anyway
-                        iter.head = i;
+                        iter.head = i + 1;
                         return value;
                     } else {
                         throw iter.reportError("readPositiveLong", "value is too large for long");
@@ -508,7 +508,7 @@ static int readIntSlowPath(JsonIterator iter, int value) throws IOException {
                     // overflow
                     if (value == Integer.MIN_VALUE) {
                         // if there is more number following, subsequent read will fail anyway
-                        iter.head = i;
+                        iter.head = i + 1;
                         return value;
                     } else {
                         throw iter.reportError("readPositiveInt", "value is too large for int");

src/test/java/com/jsoniter/TestInteger.java

@@ -94,6 +94,12 @@ public void test_leading_zero() throws IOException {
         }
     }
 
+    public void test_max_int() throws IOException {
+        int[] ints = JsonIterator.deserialize("[2147483647,-2147483648]", int[].class);
+        assertEquals(Integer.MAX_VALUE, ints[0]);
+        assertEquals(Integer.MIN_VALUE, ints[1]);
+    }
+
     private int parseInt(String input) throws IOException {
         if (isStreaming) {
             JsonIterator iter = JsonIterator.parse(new ByteArrayInputStream(input.getBytes()), 2);