On 28-mar-10, at 15:03, so wrote:
One more thing about the code :
T inv(T m)() {
return 1.0 / m;
}
What if we call inv(5)?
yes what about it what should the compiler do? read your mind? the
code that I gave returns 0
This is an error, why?
- Function explicitly states that the parameter is a floating point
type.
how?
- Operations between floating point types and integers result a
floating point type
this is the case
, as you see from the return type, code returns the type of
parameter, in this case an integer.
yes you can write a template that automatically "upconverts" to float,
but I don't think that is the correct thing for a default thing to do,
why do you alway want to have floats as result?
Thanks.
