On 12/15/18 7:34 PM, Ali Çehreli wrote:
This one confused me until I decided to talk to a rubber ducky:import std.string; void main() { auto s = "%s is a good number".format(42); } Fine; it works... Then the string becomes too long and I split it: auto s = "%s is a good number but one needs to know" ~ " what the question exactly was.".format(42); Now there is a compilation error: Orphan format arguments: args[0..1]
Hm... maybe a runtime error? I didn't think the compiler knows to complain about this.
What? Is that a bug in format? It can't be because the string should be concatenated by the compiler as a single string, no? No: operator dot has precedence over ~, so format is applied to the second part of the string before the concatenation. Doh! This puzzled me a lot.
Yes, in fact that is kind of a difference from previous "auto-concatenation" if you just put whitespace between the strings.
-Steve
