Type Deduction and Explicit Type Specification
Explore how D's compiler performs type deduction for templates and understand when and how to specify types explicitly. Learn to create flexible function templates that require explicit type parameters in scenarios where deduction is impossible.
We'll cover the following...
We'll cover the following...
Type deduction
The compiler’s decision on what type to use for a template parameter is called type deduction.
Continuing from the example in the previous lesson, you may recognize that in syntax from to!string, which we have been using in earlier, the compiler decides on the following types according to the two uses of the function template:
intandwcharwhen 42 is printeddoubleandstringwhen 1.2 is printed
The compiler can only ...