1. [techspeak] An error in which a running program attempts to
access memory not allocated to it and core dumps
with a segmentation violation error. This is often caused by improper
usage of pointers in the source code, dereferencing a null pointer, or (in
C) inadvertently using a non-pointer variable as a pointer. The classic
example is:
int i;
scanf ("%d", i); /* should have used &i */
