From 7f0e25af79cf94cd213c6f580c98b2ec08487033 Mon Sep 17 00:00:00 2001
From: XU XIAOLONG <118816189+XXL2002@users.noreply.github.com>
Date: Tue, 31 Mar 2026 10:26:19 +0800
Subject: [PATCH] fix long type overflow

---
 .../org/urbcomp/startdb/compress/elf/utils/Elf32Utils.java    | 2 +-
 .../org/urbcomp/startdb/compress/elf/utils/Elf64Utils.java    | 2 +-
 .../startdb/compress/elf/doubleprecision/ResultStructure.java | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf32Utils.java b/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf32Utils.java
index bbc099d..5c7192b 100644
--- a/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf32Utils.java
+++ b/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf32Utils.java
@@ -74,7 +74,7 @@ private static int getSignificantCount(float v, int sp, int lastBetaStar) {
 
         float temp = v * get10iP(i);
         int tempInt = (int) temp;
-        while (tempInt != temp) {
+        while (tempInt != temp && tempInt != Integer.MAX_VALUE) {
             i++;
             temp = v * get10iP(i);
             tempInt = (int) temp;
diff --git a/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf64Utils.java b/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf64Utils.java
index 7fcbe1f..1a01349 100644
--- a/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf64Utils.java
+++ b/src/main/java/org/urbcomp/startdb/compress/elf/utils/Elf64Utils.java
@@ -74,7 +74,7 @@ private static int getSignificantCount(double v, int sp, int lastBetaStar) {
 
         double temp = v * get10iP(i);
         long tempLong = (long) temp;
-        while (tempLong != temp) {
+        while (tempLong != temp && tempLong != Long.MAX_VALUE) { // check overflow
             i++;
             temp = v * get10iP(i);
             tempLong = (long) temp;
diff --git a/src/test/java/org/urbcomp/startdb/compress/elf/doubleprecision/ResultStructure.java b/src/test/java/org/urbcomp/startdb/compress/elf/doubleprecision/ResultStructure.java
index d82ec7f..449227e 100644
--- a/src/test/java/org/urbcomp/startdb/compress/elf/doubleprecision/ResultStructure.java
+++ b/src/test/java/org/urbcomp/startdb/compress/elf/doubleprecision/ResultStructure.java
@@ -1,6 +1,6 @@
 package org.urbcomp.startdb.compress.elf.doubleprecision;
 
-import sun.misc.DoubleConsts;
+// import sun.misc.DoubleConsts;
 
 import java.util.Comparator;
 import java.util.List;
@@ -174,7 +174,7 @@ public double maxValue(List<Double> ld) {
     }
 
     public double minValue(List<Double> ld) {
-        double min = DoubleConsts.MAX_VALUE;
+        double min = Double.MAX_VALUE;
         for (Double aDouble : ld) {
             if (aDouble < min) {
                 min = aDouble;