[Issue 2551] std.format on invariant values : error and segmentation fault

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=2551

Andrei Alexandrescu and...@erdani.com changed:

   What|Removed |Added

Version|2.022   |D2

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[Issue 2551] std.format on invariant values : error and segmentation fault

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=2551


Don clugd...@yahoo.com.au changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 CC||clugd...@yahoo.com.au
 Resolution||FIXED


--- Comment #3 from Don clugd...@yahoo.com.au 2009-10-19 01:19:49 PDT ---
This was fixed between 2.026 and 2.030. I believe the segfault was fixed in
2.027.

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[Issue 2551] std.format on invariant values : error and segmentation fault

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http://d.puremagic.com/issues/show_bug.cgi?id=2551





--- Comment #1 from dsim...@yahoo.com  2009-03-27 11:48 ---
The problem is the following code:

} else static if (is(const D == const(float))
  || is(const(D) == const(double))
  || is(const(D) == const(real))) { 
  // Do stuff.
} else // Similar stuff for more types.

The problem is that const(immutable(T)) seems to evaluate to immutable(T), not
const(T), as the following program demonstrates:

import std.stdio;

void main() {
immutable real foo = 1.0L;
alias const(typeof(foo)) T;
writeln(T.stringof);  // Prints immutable(real).
}

This can probably be fixed by changing is(const(T) == const someType) tests to
is(immutable(T) == immutable someType).


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[Issue 2551] std.format on invariant values : error and segmentation fault

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=2551





--- Comment #2 from dsim...@yahoo.com  2009-03-27 14:28 ---
Created an attachment (id=294)
 -- (http://d.puremagic.com/issues/attachment.cgi?id=294action=view)
Patch for std.format problems.

Here's a patch that does what I suggested previously.  It seems to solve the
problem, and all of the std.format unittests still pass, except for the ones on
lines 2462 and 2464, which don't pass even without the patch.


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