On Wednesday, 21 August 2019 at 00:11:23 UTC, ads wrote:
On Wednesday, 21 August 2019 at 00:04:37 UTC, H. S. Teoh wrote:
On Tue, Aug 20, 2019 at 11:48:04PM +0000, ads via
Digitalmars-d-learn wrote: [...]
2) Deducing the string as you describe would require CTFE
(compile-time function evaluation), which usually isn't done
unless the result is *required* at compile-time. The typical
way to force this to happen is to store the result into an
enum:
enum myStr = fizzbuzz!...(...);
writeln(myStr);
Since enums have to be known at compile-time, this forces CTFE
evaluation of fizzbuzz, which is probably what you're looking
for here.
T
Thank you for clearing those up. However even if I force CTFE
(line 35), it doesn't seem to help much.
https://godbolt.org/z/MytoLF
It does.
on line 4113 you have that string
.L.str:
.asciz
"Buzz\n49\nFizz\n47\n46\nFizzBuzz\n44\n43\nFizz\n41\nBuzz\nFizz\n38\n37\nFizz\nBuzz\n34\nFizz\n32\n31\nFizzBuzz\n29\n28\nFizz\n26\nBuzz\nFizz\n23\n22\nFizz\nBuzz\n19\nFizz\n17\n16\nFizzBuzz\n14\n13\nFizz\n11\nBuzz\nFizz\n8\n7\nFizz\nBuzz\n4\nFizz\n2\n1\n"
and all main() does is call writeln with that string
_Dmain:
push rax
lea rsi, [rip + .L.str]
mov edi, 203
call @safe void
std.stdio.writeln!(immutable(char)[]).writeln(immutable(char)[])@PLT
xor eax, eax
pop rcx
ret
You haven't given instruction to the linker to strip unused code
so the functions generated by the templates are still there.
