+/* Returns the size of the data segment, or zero if unknown.
+ This is the quantity which is limited by setrlimit(RLIMIT_DATA,...).
+ Note: This function always returns zero on HP-UX 11.00.
+ Note: The total size of all malloc()ed memory is bounded by the size of
+ the data segment only on the following platforms:
+ FreeBSD, AIX, HP-UX 11.23 and newer, IRIX, OSF/1, Solaris, BeOS, Haiku. */
+extern uintptr_t get_rusage_data (void);
+