1 files changed, 7 insertions, 7 deletions

diff --git a/src/OSSupport/GZipFile.cpp b/src/OSSupport/GZipFile.cpp
index 22d887783..32d84a0d5 100644
--- a/src/OSSupport/GZipFile.cpp
+++ b/src/OSSupport/GZipFile.cpp
@@ -11,7 +11,7 @@
 
 
 cGZipFile::cGZipFile(void) :
-	m_File(NULL), m_Mode(fmRead)
+	m_File(nullptr), m_Mode(fmRead)
 {
 }
 
@@ -30,14 +30,14 @@ cGZipFile::~cGZipFile()
 
 bool cGZipFile::Open(const AString & a_FileName, eMode a_Mode)
 {
-	if (m_File != NULL)
+	if (m_File != nullptr)
 	{
 		ASSERT(!"A file is already open in this object");
 		return false;
 	}
 	m_File = gzopen(a_FileName.c_str(), (a_Mode == fmRead) ? "r" : "w");
 	m_Mode = a_Mode;
-	return (m_File != NULL);
+	return (m_File != nullptr);
 }
 
 
@@ -46,10 +46,10 @@ bool cGZipFile::Open(const AString & a_FileName, eMode a_Mode)
 
 void cGZipFile::Close(void)
 {
-	if (m_File != NULL)
+	if (m_File != nullptr)
 	{
 		gzclose(m_File);
-		m_File = NULL;
+		m_File = nullptr;
 	}
 }
 
@@ -59,7 +59,7 @@ void cGZipFile::Close(void)
 
 int cGZipFile::ReadRestOfFile(AString & a_Contents)
 {
-	if (m_File == NULL)
+	if (m_File == nullptr)
 	{
 		ASSERT(!"No file has been opened");
 		return -1;
@@ -90,7 +90,7 @@ int cGZipFile::ReadRestOfFile(AString & a_Contents)
 
 bool cGZipFile::Write(const char * a_Contents, int a_Size)
 {
-	if (m_File == NULL)
+	if (m_File == nullptr)
 	{
 		ASSERT(!"No file has been opened");
 		return false;