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Note that in C the char data type only determines the size
 of memory allocated, but is otherwise like an 8-bit
unsigned int.
In C++, a char remains as a char until it is used in a
nontrivial expression, which then forces it to an int.
In both C and C++ there is no difference between a pointer
to a character and a pointer to a string of characters.
There are differences in handling i/o of strings.
char* string = "nothing but words";
cout << string;
would do what you expect, but
char s[100];
cin >> s;
would, upon reading the sequence:
nothing but words
would yield s = "nothing";
Thus the first blank on input is a data field separator!
Also C++ output is buffered, so output to the screen must
be forced with the flush; function.
Tags versus type names
In C++ tags (names identifying a particular kind of
structure, union or enumeration) are automatically type
names
C:
typedefstruct { double real, imag } Complex;
C++
struct Complex{ double real, imag };
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