https://issues.dlang.org/show_bug.cgi?id=14971
Issue ID: 14971
Summary: array.length -= x; should be checked for underflow
when compiling without -release
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: enhancement
Priority: P1
Component: druntime
Assignee: [email protected]
Reporter: [email protected]
For exactly the same reason that the index-out-of-bounds runtime checks are
useful for debugging purposes when compiling without the -release flag,
decrements on the array .length attribute should be checked during runtime for
underflow.
As it is now:
int main()
{
int[] a = [];
a.length--;
return 0;
}
Will yield:
core.exception.OutOfMemoryError@(0)
This should instead be an error message along the lines of the
index-out-of-bounds exception that indicates what the problem actually is.
This is related to Issue 3933 from 2010 (there's still no line number on the
error, which goes a long way to making this issue less important).
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