Bug 9579 – std.regex.replace format argument should not require same constness as target string

Code: // This works: auto re = regex(`a`, "g"); string input = "abc"; auto r = replace(input, re, "($1)"); // This gives a compile error: auto re = regex(`a`, "g"); char[] input; auto r = replace(input, re, "($1)"); The reason is that when input is char[], replace expects the format string to also be char[], but "($1)" is, by default, of type string. But this is unreasonable, because the constness of the format string shouldn't be tied to the constness of the target string! (Yes, DMD's IFTI has some limitations, it should be able in infer char[] instead of immutable(char)[], but regardless, there's no reason why the format argument must be char[].)

Commit pushed to master at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/558dba8dd4a62491545af574f4577ff2a5356fc4 Finalize new API, more examples Also fix issue 9579.

Confirmed it works now in git HEAD. Thanks Dmitry!