commit eea7c13cf0859157b59b5802408f54ed94cc80c5
author Lei Zhang <thestig@chromium.org> Tue Apr 19 03:23:57 2022 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Apr 19 03:23:57 2022 +0000
tree 7525dc5af5fa8e12c04e443f3ad583fe67f3aea0
parent 98b2d4fc6f532649fe33389dafae7eddf4febd41

Use DCHECK_LT() in JBig2_ArithDecoder.cpp.

Bug: pdfium:1636
Change-Id: Ib1360ac27cf1371808b1791d0b96465f8873698f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/92811
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

core/fxcodec/jbig2/JBig2_ArithDecoder.cpp

diff --git a/core/fxcodec/jbig2/JBig2_ArithDecoder.cpp b/core/fxcodec/jbig2/JBig2_ArithDecoder.cpp
index 09eaaf3..92cb9b5 100644
--- a/core/fxcodec/jbig2/JBig2_ArithDecoder.cpp
+++ b/core/fxcodec/jbig2/JBig2_ArithDecoder.cpp
@@ -9,7 +9,7 @@
 #include <iterator>
 
 #include "core/fxcodec/jbig2/JBig2_BitStream.h"
-#include "third_party/base/check.h"
+#include "third_party/base/check_op.h"
 
 namespace {
 
@@ -43,13 +43,13 @@
   if (qe.bSwitch)
     m_MPS = !m_MPS;
   m_I = qe.NLPS;
-  DCHECK(m_I < std::size(kQeTable));
+  DCHECK_LT(m_I, std::size(kQeTable));
   return D;
 }
 
 int JBig2ArithCtx::DecodeNMPS(const JBig2ArithQe& qe) {
   m_I = qe.NMPS;
-  DCHECK(m_I < std::size(kQeTable));
+  DCHECK_LT(m_I, std::size(kQeTable));
   return MPS();
 }
 
@@ -67,7 +67,7 @@
 
 int CJBig2_ArithDecoder::Decode(JBig2ArithCtx* pCX) {
   DCHECK(pCX);
-  DCHECK(pCX->I() < std::size(kQeTable));
+  DCHECK_LT(pCX->I(), std::size(kQeTable));
 
   const JBig2ArithCtx::JBig2ArithQe& qe = kQeTable[pCX->I()];
   m_A -= qe.Qe;