GDB Call program crashes when memory mirroring core file

/* GCC gdb_test.c-o gdb_test-g *./gdb_test  * Segmentation fault (core dumped) * GDB gdb_test-c core.5521  * C Ore was generated by ' gdb_test '. * Program terminated with signal one, segmentation fault. * #0  0x000000000040048b in Main (Argc=1, argv=0x7fff00c0b438) at gdb_test.c:18 * 18*ptr= ' \ n '; */#include <stdio.h& gt; #include <stdlib.h> #include <unistd.h>int main (const int argc,const char *argv[]) {char *ptr=null;*ptr= ' \ n '; return 0;} /* * Add follow in the ~/.BASHRC file to generate core file * Ulimit-c Unlimited */

GDB Call program crashes when memory mirroring core file