[Issue 16442] New: FrontTransversal fails with empty ranges
via Digitalmars-d-bugs
digitalmars-d-bugs at puremagic.com
Sun Aug 28 08:34:29 PDT 2016
https://issues.dlang.org/show_bug.cgi?id=16442
Issue ID: 16442
Summary: FrontTransversal fails with empty ranges
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P1
Component: phobos
Assignee: nobody at puremagic.com
Reporter: gruen_tobias at web.de
If the input ROR of FrontTransversal consists of empty ranges
and the option assumeNotJagged || enforceNotJagged is set, the return value of
empty is wrong.
===
int[][] arr = [[], []];
auto ft = frontTransversal!(TransverseOptions.assumeNotJagged)(arr);
foreach(elem; ft) // fails here..
{
}
===
Will Throw a
core.exception.AssertError:"Attempting to fetch the front of an empty array of
int"
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