From 420218dfb5ce6af1fabb848cf422b6d956ebc431 Mon Sep 17 00:00:00 2001
From: guoxu <13910754971@163.com>
Date: Thu, 18 Dec 2025 16:04:28 +0800
Subject: [PATCH] [fix][libexpr] Fix issue about decimal eq and ne.

---
 src/types/decimal/decimal.h | 47 ++++++++++++++++++++++++++++++++-----
 1 file changed, 41 insertions(+), 6 deletions(-)

diff --git a/src/types/decimal/decimal.h b/src/types/decimal/decimal.h
index 390755b..0fd05d9 100644
--- a/src/types/decimal/decimal.h
+++ b/src/types/decimal/decimal.h
@@ -219,7 +219,14 @@ class Decimal {
    * @return
    */
     bool operator==(const Decimal &dec) const {
-      return v == dec.getMpf();
+      const mpf_class& mpf1 = mpf_class(toString());
+      const mpf_class& mpf2 = mpf_class(dec.toString());
+
+      int ret = cmp(mpf1, mpf2);
+      if(ret == 0) {
+        return true;
+      }
+      return false;
     }
 
     /**
@@ -228,7 +235,7 @@ class Decimal {
      * @return
      */
     bool operator!=(const Decimal &dec) const {
-        return v != dec.getMpf();
+        return !(*this == dec);
     }
 
     /**
@@ -237,7 +244,14 @@ class Decimal {
      * @return
      */
     bool operator<(const Decimal &dec) const {
-        return v < dec.getMpf();
+      const mpf_class& mpf1 = mpf_class(toString());
+      const mpf_class& mpf2 = mpf_class(dec.toString());
+
+      int ret = cmp(mpf1, mpf2);
+      if(ret < 0) {
+        return true;
+      }
+      return false;
     }
 
     /**
@@ -246,7 +260,14 @@ class Decimal {
      * @return
      */
     bool operator<=(const Decimal &dec) const {
-        return v <= dec.getMpf();
+      const mpf_class& mpf1 = mpf_class(toString());
+      const mpf_class& mpf2 = mpf_class(dec.toString());
+
+      int ret = cmp(mpf1, mpf2);
+      if(ret <= 0) {
+        return true;
+      }
+      return false;
     }
 
     /**
@@ -255,7 +276,14 @@ class Decimal {
      * @return
      */
     bool operator>(const Decimal &dec) const {
-        return v > dec.getMpf();;
+      const mpf_class& mpf1 = mpf_class(toString());
+      const mpf_class& mpf2 = mpf_class(dec.toString());
+
+      int ret = cmp(mpf1, mpf2);
+      if(ret > 0) {
+        return true;
+      }
+      return false;
     }
 
     /**
@@ -264,7 +292,14 @@ class Decimal {
      * @return
      */
     bool operator>=(const Decimal &dec) const {
-        return v >= dec.getMpf();
+      const mpf_class& mpf1 = mpf_class(toString());
+      const mpf_class& mpf2 = mpf_class(dec.toString());
+
+      int ret = cmp(mpf1, mpf2);
+      if(ret >= 0) {
+        return true;
+      }
+      return false;
     }
 
     /**