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C Programming Language
=======================

K&R Notes (unstructured)
-----------------------------

With pointer arithmatic, the type of ``foo *p`` is taken into account
automagically. Eg, ``p+3`` -> ``0xFEFE0000 + 3 * (sizeof foo)``.

Examples of tricky pointer sytax::

  int *ip;  
  (++*p)
  (*p++)
  ++(*p)
  *(++p)

In the context of references like function declarations, only the size of the
first dimension of a multi-dimensional array is free; the others must be
specified explicitly::

  void copy_2d_array(int a[][10], int b[][10]); // Ok
  void copy_2d_array(int a[][],   int b[][]);   // Invalid
  void copy_2d_array(int a[10][], int b[10][]); // Invalid

Negative indexing of arrays is "allowed" (reads ahead of the array in memory);
need to check for that case explicitly.

``_FORTIFY_SOURCE`` does what it says. 

In C99 can ``int* p`` replace ``int *p``? Seems like yes. 

The "update statement" of a for loop gets executed at the /end/ of every loop,
which means an iteration variable gets updated once more than might be
expected::

  int i;
  for(i = 0; i < 10; i++) { 
    } 
  printf("%d\n", i); // prints 10, not 9

Any 'inline' should probably be 'static' (local linkage).