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digitalmars.D.bugs - [Issue 4599] New: Error messages with missing memory for array operations

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4599

           Summary: Error messages with missing memory for array
                    operations
           Product: D
           Version: D1 & D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: diagnostic
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc


--- Comment #0 from bearophile_hugs eml.cc 2010-08-08 14:29:12 PDT ---
(I don't know where to file this, so I open a new bug report, sorry if it is a
duplicated.)

I'd like DMD 2.047 to catch this bug at compile time (so this is more an
enhancement request):

import std.stdio: writeln;
void main() {
    double[] a = [1];
    writeln(a[] + 1); // access violation
}

----------------

This prints nothing and raises no compile-time or run-time errors (this is more
like a bug):

import std.stdio: writeln;
void main() {
    int[] a1 = [1, 2];
    int[] a2 = [3, 4];
    int[] a3;
    a3[] = a1[] + a2[];
    writeln(a3);
}

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next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=4599


Andrej Mitrovic <andrej.mitrovich gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |andrej.mitrovich gmail.com


--- Comment #1 from Andrej Mitrovic <andrej.mitrovich gmail.com> 2010-08-08
17:54:43 PDT ---
Isn't the second one similar to what I've reported in Issue 4521 ?

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--- Comment #2 from bearophile_hugs eml.cc 2010-08-08 18:55:32 PDT ---
I think it is not, because here you aren't setting the items of a3 to a certain
value, you are assigning a certain number of values coming from the vector
operation. And there is not enough space for them.

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prev sibling parent d-bugmail puremagic.com writes:
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Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |clugdbug yahoo.com.au
         Resolution|                            |DUPLICATE


--- Comment #3 from Don <clugdbug yahoo.com.au> 2010-08-09 00:05:25 PDT ---
The first case is a dup of regression bug 4578, which is fixed in the beta of
2.048.
The second case is a dup of bug 2547.

*** This issue has been marked as a duplicate of issue 2547 ***

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