The extras.h header file consists of several functions which may be indirectly included by other headers or included for use directly through extras.h.

• "_gvct,"
• "_heapmin," releases unused heap to the system
• "_itoa,"
• "_itow,"
• "_ltoa,"
• "_makepath," creates a path
• "_splitpath,"
• "_strdate,"
• "_strdup,"
• "_stricmp,"
• "_strlwr,"
• "_strnset,"
• "_strrev,"
• "_strset,"
• "_strspnp,"
• "_strupr,"
• "_ultoa,"
• "_wcsdup,"
• "_wcsicmp,"
• "_wcslwr,"
• "_wcsnicmp,"
• "_wcsnset,"
• "_wcsrev,"
• "_wcsset,"
• "_wcsspnp,"
• "_wstrrev,"
• "_wcsupr,"
• "_wtoi,"

If you're porting a UNIX or DOS program, you might also need the functions in other UNIX compatibility headers.

"POSIX Functionality," for information on POSIX naming conventions.