Re: Template specialization using traits?

[tcak via Digitalmars-d-learn]

On Monday, 21 December 2015 at 11:12:10 UTC, Jonathan M Davis 
wrote:
On Monday, 21 December 2015 at 11:07:16 UTC, Jonathan M Davis 
wrote:
For your example to work with template constraints, the most 
straightforward solution would be

void func(T)(T t)
    if(!isIntegral!T)
{
    writeln(1);
}
void func(T)(T t)
    if(isIntegral!T)
{
    writeln(2);
}

Alternatively, you can use static if, though you're only 
dealing with one template in that case. e.g.

void func(T)(T t)
{
    static if(isIntegral!T)
        writeln(2);
    else
        writeln(1);
}

- Jonathan M Davis

Another alternative is:

template func(T){
        static if( isIntegral!T ){
                void func(T t){
                        writeln( 2 );
                }
        }
        else{
                void func(T t){
                        writeln( 1 );
                }
        }
}