digitalmars.D.learn - Figuring out template argument deduction
- Andrej Mitrovic (10/10) May 20 2011 After reading the Argument Deduction section in http://d-programming-lan...
After reading the Argument Deduction section in http://d-programming-language.org/template.html for the umpteenth time, I still don't quite grok how things work. For example: template Foo(T1 : T1[], T2) { pragma(msg, T1); } template Bar(T1 : T2[], T2) { pragma(msg, T1); } alias Foo!(int[], int) foo; // T1 = int alias Bar!(int[], int) bar; // T1 = int[] void main() { } In the docs it says that these cases refer to: "2. If the type specialization is dependent on a type parameter, the type of that parameter is set to be the corresponding part of the type argument." So what does "corresponding part" mean? It sounds so ambiguous that I can't figure it out.
May 20 2011