4.1

1 files changed, 96 insertions, 0 deletions

diff --git a/zen/debug_new.h b/zen/debug_new.h
new file mode 100644
index 00000000..2976d3d7
--- /dev/null
+++ b/zen/debug_new.h
@@ -0,0 +1,96 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+
+#ifndef DEBUGNEW_H_INCLUDED
+#define DEBUGNEW_H_INCLUDED
+
+#include <string>
+#include <sstream>
+#include <cstdlib> //malloc(), free()
+
+#ifndef _MSC_VER
+#error currently for use with MSC only
+#endif
+
+/*overwrite "operator new" to get more detailed error messages on bad_alloc, detect memory leaks and write memory dumps
+Usage:
+- Include everywhere before any other file: $(ProjectDir)\shared\debug_new.h
+For Minidumps:
+- Compile "debug_new.cpp"
+- Compile with debugging symbols and optimization deactivated
+*/
+
+namespace mem_check
+{
+class BadAllocDetailed : public std::bad_alloc
+{
+public:
+    explicit BadAllocDetailed(size_t allocSize)
+    {
+        errorMsg = "Memory allocation failed: ";
+        errorMsg += numberToString(allocSize);
+    }
+
+    ~BadAllocDetailed() throw() {}
+
+    virtual const char* what() const throw()
+    {
+        return errorMsg.c_str();
+    }
+
+private:
+    template <class T>
+    static std::string numberToString(const T& number) //convert number to string the C++ way
+    {
+        std::ostringstream ss;
+        ss << number;
+        return ss.str();
+    }
+
+    std::string errorMsg;
+};
+
+#ifdef _MSC_VER
+void writeMinidump();
+#endif
+}
+
+inline
+void* operator new(size_t size)
+{
+    void* newMem = ::malloc(size);
+    if (!newMem)
+    {
+#ifdef _MSC_VER
+        mem_check::writeMinidump();
+#endif
+        throw mem_check::BadAllocDetailed(size);
+    }
+    return newMem;
+}
+
+
+inline
+void operator delete(void* ptr)
+{
+    ::free(ptr);
+}
+
+
+inline
+void* operator new[](size_t size)
+{
+    return operator new(size);
+}
+
+
+inline
+void operator delete[](void* ptr)
+{
+    operator delete(ptr);
+}
+
+#endif // DEBUGNEW_H_INCLUDED