Detailed Description

Checking for allocations when compiled with "-D_DEBUG".

tl_debug and associated files: ??.200? - Written by Jeff Henley 01.2006 - Attempted to make general for all machines, Jeff Hensley 02.2006 - Added Hash Tables, Jeff Hensley

What we've tried to do: Put a "picket" on either side of allocated memory. Inside this picket, place NaN, so that if something grabs that memory, and then uses it, a.out will die. At time of releasing allocated memory, this also checks the pickets to make sure they weren't altered in any way. Also, we can place NaN's inside of the useful memory, so that if it is used before initialization, you should get an execption.

Note: Here, we've tried to take "picket_value", stored as an int. Then use a pointer to char to step through each byte of picket_value. The thinking is that chars are 1-byte. So all pointer arithmetic will be valid and we do not need to worry about adding/subtracting a specific number of bytes from it.