On Tuesday, 20 May 2014 at 17:14:31 UTC, John Colvin wrote:
On Tuesday, 20 May 2014 at 12:25:11 UTC, Dominikus Dittes
Scherkl wrote:
Did I understand correct that a function can only be @nogc if
also all functions that it calls are @nogc too (and of course
it doesn't use the GC itself)?
If so, should this be possible:
string foo()
{
// use GC to allocate some string
}
bar @nogc
{
mixin(foo());
}
Because, bar() didn't really call foo() but instead foo() is
evaluated during compile time and it's result is now part of
the code, right?
Yes, that should be allowed.
Thanks. This is nice to know, because I will use this a lot in
the future:
/// create a fixed size array with the given name and with *max*
entries
/// of immutable values of the same type as the return value of
the
/// given function.
/// it contains the values of that function in the range [0..max].
string makeLookupTable(alias fn, uint max=255)(string name) pure
@safe if(is(typeof(fn(max))))
{
string table = "immutable " ~ to!string(typeof(fn(max))) ~ "["
~ to!string(max+1) ~ "] " ~ name ~"= [ ";
foreach(i; 0..max) table ~= to!string(fn(i) ~ ", ";
return table ~ to!string(fn(max) ~" ]";
}
