arm64 : fix intptr_t size

public/tier1/utlbuffer.h

@@ -189,6 +189,7 @@ public:
 	unsigned int	GetUnsignedInt( );
 	float			GetFloat( );
 	double			GetDouble( );
+    void *			GetPtr();
 	template <size_t maxLenInChars> void GetString( char( &pString )[maxLenInChars] )
 	{
 		GetStringInternal( pString, maxLenInChars );
@@ -278,6 +279,7 @@ public:
 	void			PutUnsignedInt( unsigned int u );
 	void			PutFloat( float f );
 	void			PutDouble( double d );
+    void			PutPtr( void * ); // Writes the pointer, not the pointed to
 	void			PutString( const char* pString );
 	void			Put( const void* pMem, int size );
 
@@ -757,6 +759,18 @@ inline float CUtlBuffer::GetFloat( )
 	return f;
 }
 
+inline void *CUtlBuffer::GetPtr( )
+{
+    void *p;
+    // LEGACY WARNING: in text mode, PutPtr writes 32 bit pointers in hex, while GetPtr reads 32 or 64 bit pointers in decimal
+#ifndef PLATFORM_64BITS
+    p = ( void* )GetUnsignedInt();
+#else
+    p = ( void* )GetInt64();
+#endif
+    return p;
+}
+
 inline double CUtlBuffer::GetDouble( )
 {
 	double d;
@@ -986,6 +1000,19 @@ inline void CUtlBuffer::PutDouble( double d )
 	PutType( d, "%f" );
 }
 
+inline void CUtlBuffer::PutPtr( void *p )
+{
+    // LEGACY WARNING: in text mode, PutPtr writes 32 bit pointers in hex, while GetPtr reads 32 or 64 bit pointers in decimal
+    if (!IsText())
+    {
+        PutTypeBin( p );
+    }
+    else
+    {
+        Printf( "0x%p", p );
+    }
+}
+
 
 //-----------------------------------------------------------------------------
 // Am I a text buffer?