legal validation construct?

[Geekibz]

[code=c]int d;
scanf("%d",&r);
r=getchar();[/code] Is this a legal validation construct?

[Banfa]

Assuming you meant int r; and not int d; then yes that is valid. However the scanf line serves little purpose as the value of r is overwritten by the getchar line.

Also note that it is very easy in C/C++ to write code that is completely legal while at the same time being logically undesirable.