Error log

This is the code that was used originally in Umbra for error reporting. It relies on libtcod, but since the only libtcod-specific part of the code is the container storing the error messages, it can easily be converted to something else, for instance std::vector.

Everything in the header file is commented on using javadoc syntax - if you code using NetBeans or other IDE that supports javadoc, you can benefit from the live documentation. Here's a short version of what UmbraError offers:

//append a new error to the log
static int add (UmbraErrorLevel errLev, const char * errStr, ...);
static int add (UmbraErrorLevel errLev, std::string errStr);
//check if a file exists (same as TCODSystem::fileExists)
static bool fileExists (const char * filename, ...);
//retrieve last logged message
static const char * getLastMessage ();
//retrieve any message (you must know the index)
static const char * getMessage (int idx);
//check the total amount of errors logged so far
static int getNbErrors ();

You can append a new error to the error stack at any point in your code:

UmbraError::add(UMBRA_ERRORLEVEL_ERROR,"Something bad has just happened!");

and after you leave your application, you'll find an error log in your execution directory, saved as a human-readable .txt file, ready for analysis!

Resource	File size
UmbraError - simple and straightforward error logging in C++	4.45 kB