Get rid of NULLs in fpdfsdk/

fpdfsdk/fpdfsave.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "public/fpdf_save.h"
 
 #include <vector>
 
@@ skipping 31 matching lines @@
   FX_BOOL WriteBlock(const void* pData, size_t size) override;
   void Release() override;
 
  protected:
   ~CFX_IFileWrite() override {}
 
   FPDF_FILEWRITE* m_pFileWriteStruct;
 };
 
 CFX_IFileWrite::CFX_IFileWrite() {
-  m_pFileWriteStruct = NULL;
+  m_pFileWriteStruct = nullptr;
 }
 
 FX_BOOL CFX_IFileWrite::Init(FPDF_FILEWRITE* pFileWriteStruct) {
   if (!pFileWriteStruct)
     return FALSE;
 
   m_pFileWriteStruct = pFileWriteStruct;
   return TRUE;
 }
 
@@ skipping 70 matching lines @@
   // template
   if (iTemplate > -1) {
     CPDF_Stream* pTemplateStream = pArray->GetStreamAt(iTemplate);
     CPDF_StreamAcc streamAcc;
     streamAcc.LoadAllData(pTemplateStream);
     uint8_t* pData = (uint8_t*)streamAcc.GetData();
     uint32_t dwSize2 = streamAcc.GetSize();
     ScopedFileStream pTemplate(FX_CreateMemoryStream(pData, dwSize2));
     pContext->UpdateChecksum(pTemplate.get());
   }
-  CPDF_Stream* pFormStream = NULL;
-  CPDF_Stream* pDataSetsStream = NULL;
+  CPDF_Stream* pFormStream = nullptr;
+  CPDF_Stream* pDataSetsStream = nullptr;
   if (iFormIndex != -1) {
     // Get form CPDF_Stream
     CPDF_Object* pFormPDFObj = pArray->GetObjectAt(iFormIndex);
     if (pFormPDFObj->IsReference()) {
       CPDF_Object* pFormDirectObj = pFormPDFObj->GetDirect();
       if (pFormDirectObj && pFormDirectObj->IsStream()) {
         pFormStream = (CPDF_Stream*)pFormDirectObj;
       }
     } else if (pFormPDFObj->IsStream()) {
       pFormStream = (CPDF_Stream*)pFormPDFObj;
@@ skipping 20 matching lines @@
                                            pDsfileWrite.get(), nullptr) &&
         pDsfileWrite->GetSize() > 0) {
       // Datasets
       pContext->UpdateChecksum(pDsfileWrite.get());
       pContext->FinishChecksum();
       CPDF_Dictionary* pDataDict = new CPDF_Dictionary;
       if (iDataSetsIndex != -1) {
         if (pDataSetsStream)
           pDataSetsStream->InitStreamFromFile(pDsfileWrite.get(), pDataDict);
       } else {
-        CPDF_Stream* pData = new CPDF_Stream(NULL, 0, NULL);
+        CPDF_Stream* pData = new CPDF_Stream(nullptr, 0, nullptr);
         pData->InitStreamFromFile(pDsfileWrite.get(), pDataDict);
         pPDFDocument->AddIndirectObject(pData);
         iLast = pArray->GetCount() - 2;
         pArray->InsertAt(iLast, new CPDF_String("datasets", FALSE));
         pArray->InsertAt(iLast + 1, pData, pPDFDocument);
       }
       fileList->push_back(std::move(pDsfileWrite));
     }
   }
   // L"form"
   {
     ScopedFileStream pfileWrite(FX_CreateMemoryStream());
     if (pXFADocView->GetDoc()->SavePackage(XFA_HASHCODE_Form, pfileWrite.get(),
                                            pContext.get()) &&
         pfileWrite->GetSize() > 0) {
       CPDF_Dictionary* pDataDict = new CPDF_Dictionary;
       if (iFormIndex != -1) {
         if (pFormStream)
           pFormStream->InitStreamFromFile(pfileWrite.get(), pDataDict);
       } else {
-        CPDF_Stream* pData = new CPDF_Stream(NULL, 0, NULL);
+        CPDF_Stream* pData = new CPDF_Stream(nullptr, 0, nullptr);
         pData->InitStreamFromFile(pfileWrite.get(), pDataDict);
         pPDFDocument->AddIndirectObject(pData);
         iLast = pArray->GetCount() - 2;
         pArray->InsertAt(iLast, new CPDF_String("form", FALSE));
         pArray->InsertAt(iLast + 1, pData, pPDFDocument);
       }
       fileList->push_back(std::move(pfileWrite));
     }
   }
   return true;
@@ skipping 66 matching lines @@
     flags = 0;
 
   CPDF_Creator FileMaker(pPDFDoc);
   if (bSetVersion)
     FileMaker.SetFileVersion(fileVerion);
   if (flags == FPDF_REMOVE_SECURITY) {
     flags = 0;
     FileMaker.RemoveSecurity();
   }
 
-  CFX_IFileWrite* pStreamWrite = NULL;
-  pStreamWrite = new CFX_IFileWrite;
+  CFX_IFileWrite* pStreamWrite = new CFX_IFileWrite;
   pStreamWrite->Init(pFileWrite);
   bool bRet = FileMaker.Create(pStreamWrite, flags);
 #ifdef PDF_ENABLE_XFA
   SendPostSaveToXFADoc(pDoc);
 #endif  // PDF_ENABLE_XFA
   pStreamWrite->Release();
   return bRet;
 }
 
 }  // namespace
 
 DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveAsCopy(FPDF_DOCUMENT document,
                                             FPDF_FILEWRITE* pFileWrite,
                                             FPDF_DWORD flags) {
   return FPDF_Doc_Save(document, pFileWrite, flags, FALSE, 0);
 }
 
 DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveWithVersion(FPDF_DOCUMENT document,
                                                  FPDF_FILEWRITE* pFileWrite,
                                                  FPDF_DWORD flags,
                                                  int fileVersion) {
   return FPDF_Doc_Save(document, pFileWrite, flags, TRUE, fileVersion);
 }