add some assert() to make tutor happy

1 files changed, 2 insertions, 0 deletions

diff --git a/ue2/imgsynth2/cwindowsbitmap.cpp b/ue2/imgsynth2/cwindowsbitmap.cpp
index d561465..83954b6 100644
--- a/ue2/imgsynth2/cwindowsbitmap.cpp
+++ b/ue2/imgsynth2/cwindowsbitmap.cpp
@@ -7,6 +7,7 @@
 
 #include <boost/lexical_cast.hpp>
 #include <boost/numeric/conversion/cast.hpp>
+#include <assert.h>
 #ifdef DEBUG
 # include <iostream>
 #endif
@@ -58,6 +59,7 @@ void CWindowsBitmap::read(std::ifstream& in)
     if (m_pixeldata != NULL)
       delete[] m_pixeldata;
     m_pixeldata = new uint8_t[m_infoheader.biSizeImage];
+    assert(m_fileheader.bfOffBits > 0);
     in.seekg(m_fileheader.bfOffBits);
     in.read(reinterpret_cast<char *>(m_pixeldata), m_infoheader.biSizeImage);
   }