One of the nice things about the D programming language is that it has very convenient syntax for conditional compilation. For example, suppose you want to print out some useful info in debug builds. You just use:
debug writeln("Value of x is ", x);One problem that I constantly run into in cases like this is that I
haven’t imported std.stdio, so I have to go right up to the top of
the file, add debug import std.stdio;, back down again, and continue.
Sigh.
Not so fast! D has scoped imports, so you can put the import
std.stdio; right where you need it.
void main(string[] args)
{
debug import std.stdio;
debug writeln(args);
// ...
}It’s the little things like this that make D so pleasant to use.
