[Bug c/13691] malloc returns eroneous pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-15 00:17 -------
You cannot do this:
A = (double **)malloc(16000*sizeof(double *));
B = (double **)malloc(32000*sizeof(double *));
A[3] = 1.234;  // works fine
B[3] = 1.234;  //  gives p0_23074:  p4_error: interrupt SIGSEGV: 11

That will not compile anyways.  But if you change it to:
A[3][3] = 1.234;
this will compile but it will not work as you have not allocated what A[3] points to, go read a book 
about C memory and pointers, no I do not know of one.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13691