On 13.12.21 12:09, drug wrote:
That's because `str` is initialized by a literal and you can not change it by definition. When you call `toStringz` it duplicates that literal (adding terminating zero at the end) and the duplicate is mutable. I would recommend do not use `toStringz` and just make duplicate of the literal - https://run.dlang.io/is/vaosW0
From the link:
string str = "abc;def;ab".dup; // allocates the string in the heap char* w = cast(char*)str; writeln(replaceChar(w, str.length, ';', 'X'));
That still has undefined behavior. You cannot mutate the characters in a `string`. It doesn't matter if it came from a literal or `.dup`. Use `char[]` instead of `string`.
