[Issue 12889] New: std.algorithm remove is broken for arrays of arrays
via Digitalmars-d-bugs
digitalmars-d-bugs at puremagic.com
Wed Jun 11 08:03:13 PDT 2014
https://issues.dlang.org/show_bug.cgi?id=12889
Issue ID: 12889
Summary: std.algorithm remove is broken for arrays of arrays
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: P1
Component: Phobos
Assignee: nobody at puremagic.com
Reporter: safety0ff.bugz at gmail.com
Trying to remove anything but the a single element from the front of a
multidimensional array will cause a run time error.
This causes bugs in phobos functions who depend on remove such as
replaceInPlace.
Code:
import std.typecons;
import std.algorithm;
import std.stdio : writeln;
void main()
{
// note: dimension doesn't matter
int[1][] arr = [[0], [1], [2], [3], [4], [5], [6]];
size_t from = 1; // from is inclusive
size_t to = 2; // to is exclusive
//arr = remove(arr, tuple(from,to)); // object.Error: overlapping array
copy
//foreach (i; from .. to) arr = remove(arr, i); // object.Error:
overlapping array copy
arr = remove(arr, 0); // Ok!
//arr = remove(arr, 1); // object.Error: overlapping array copy
// even removing nothing is broken:
//arr = remove(arr, tuple(0,0)); // object.Error: overlapping array copy
writeln(arr);
}
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