Get rid of NULLs in fpdfsdk/

fpdfsdk/fpdf_dataavail.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_dataavail.h"
 
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/fpdf_parser/include/ipdf_data_avail.h"
@@ skipping 19 matching lines @@
               "IPDF_DataAvail::FormError value mismatch");
 static_assert(IPDF_DataAvail::FormNotAvailable == PDF_FORM_NOTAVAIL,
               "IPDF_DataAvail::FormNotAvailable value mismatch");
 static_assert(IPDF_DataAvail::FormAvailable == PDF_FORM_AVAIL,
               "IPDF_DataAvail::FormAvailable value mismatch");
 static_assert(IPDF_DataAvail::FormNotExist == PDF_FORM_NOTEXIST,
               "IPDF_DataAvail::FormNotExist value mismatch");
 
 class CFPDF_FileAvailWrap : public IPDF_DataAvail::FileAvail {
  public:
-  CFPDF_FileAvailWrap() { m_pfileAvail = NULL; }
+  CFPDF_FileAvailWrap() { m_pfileAvail = nullptr; }
   ~CFPDF_FileAvailWrap() override {}
 
   void Set(FX_FILEAVAIL* pfileAvail) { m_pfileAvail = pfileAvail; }
 
   // IPDF_DataAvail::FileAvail:
   FX_BOOL IsDataAvail(FX_FILESIZE offset, uint32_t size) override {
     return m_pfileAvail->IsDataAvail(m_pfileAvail, offset, size);
   }
 
  private:
   FX_FILEAVAIL* m_pfileAvail;
 };
 
 class CFPDF_FileAccessWrap : public IFX_FileRead {
  public:
-  CFPDF_FileAccessWrap() { m_pFileAccess = NULL; }
+  CFPDF_FileAccessWrap() { m_pFileAccess = nullptr; }
   ~CFPDF_FileAccessWrap() override {}
 
   void Set(FPDF_FILEACCESS* pFile) { m_pFileAccess = pFile; }
 
   // IFX_FileRead
   FX_FILESIZE GetSize() override { return m_pFileAccess->m_FileLen; }
 
   FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override {
     return m_pFileAccess->m_GetBlock(m_pFileAccess->m_Param, offset,
                                      (uint8_t*)buffer, size);
@@ skipping 17 matching lines @@
   void AddSegment(FX_FILESIZE offset, uint32_t size) override {
     m_pDownloadHints->AddSegment(m_pDownloadHints, offset, size);
   }
 
  private:
   FX_DOWNLOADHINTS* m_pDownloadHints;
 };
 
 class CFPDF_DataAvail {
  public:
-  CFPDF_DataAvail() { m_pDataAvail = NULL; }
+  CFPDF_DataAvail() { m_pDataAvail = nullptr; }
 
   ~CFPDF_DataAvail() { delete m_pDataAvail; }
 
   IPDF_DataAvail* m_pDataAvail;
   CFPDF_FileAvailWrap m_FileAvail;
   CFPDF_FileAccessWrap m_FileRead;
 };
 
 DLLEXPORT FPDF_AVAIL STDCALL FPDFAvail_Create(FX_FILEAVAIL* file_avail,
                                               FPDF_FILEACCESS* file) {
@@ skipping 58 matching lines @@
     return PDF_FORM_ERROR;
   CFPDF_DownloadHintsWrap hints_wrap(hints);
   return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsFormAvail(&hints_wrap);
 }
 
 DLLEXPORT int STDCALL FPDFAvail_IsLinearized(FPDF_AVAIL avail) {
   if (!avail)
     return PDF_LINEARIZATION_UNKNOWN;
   return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsLinearizedPDF();
 }