c++ bug.cpp -Wall -L /usr/local/lib -I/usr/local/include -lm -lgmpxx -o bug -ftemplate-depth-99 -D_MP
c++ bug.cpp -Wall -L /usr/local/lib -I/usr/local/include -lm -lgmpxx -lefence -o bug_ef -ftemplate-depth-99 -D_MP -g
address@hidden bugdir]$ bug
122
Segmentation fault (core dumped)
address@hidden bugdir]$ bug_ef

  Electric Fence 2.2.0 Copyright (C) 1987-1999 Bruce Perens <address@hidden>
122

ElectricFence Aborting: realloc(323231, 4): address not from malloc().
Illegal instruction (core dumped)
address@hidden bugdir]$ gcc --version
2.95.3
address@hidden bugdir]$ uname -a
Linux crtbt15.grenoble.cnrs.fr 2.4.8-26mdksmp #1 SMP Sun Sep 23 16:04:21 CEST 2001 i686 unknown