Debug Malloc (Dmalloc) Library Release Notes

A number of features and bug fixes in this release. I'm sure I've mised some patch or bug fix. Please ping me if I've missed something.

Added the dmalloc_get_stats() function to report on internal heap statistics.
Added file/line number reporting for the function argument checking features. WARNING: this requires a recompilation of all code compiled with -DDMALLOC_FUNC_CHECK.

Improved the usage output messages from dmalloc.
Improved some of the dmalloc error string representations to better identify internal errors.

None.

None.

I've increased the internal default basic block size to 32k from 16k. Most architectures have getpagesize which overrides it.
Improved the dmalloc_t test program. Added better error code output. Improved it's ability to test small heap areas.
Improved some of the error values to better identify internal errors.
I've added the dmalloc_get_stats() function which allows the caller to get a number of internal heap statistics such as current and maximum allocations and number of pointers.
I've added support for overloading the strndup function.
I've added file and line number information for the overloading of the functions for argument checking.
I've added warning if memcpy is copying overlapping memory and the memmove fucntion is available.

None.

Made a number of documentation improvements.
Fixed the Makefile to install libs as 755.
Added some fixes for Compaq's C compiler.
Fixed a problem where if the LARGEST_ALLOCATION is set to 0, dmalloc_t still checks it.
Fixed a problem with double free not reporting ERROR_ALREADY_FREE.
Fixed some problems with function argument checking and length arguments. The library was not handling strncmp correctly for example.