http://gdcproject.org/bugzilla/show_bug.cgi?id=25
Bug #: 25
Summary: Segmentation fault on a simple template class; no
segfault if substitute class by structure
Classification: Unclassified
Product: GDC
Version: 4.7.x
Platform: x86_64
OS/Version: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gdc
AssignedTo: [email protected]
ReportedBy: [email protected]
Created attachment 15
--> http://gdcproject.org/bugzilla/attachment.cgi?id=15
the same code as in the issue's body
Dear Developers,
The following simple code produces segfault with both gdc 4.7 and latest dmd:
---------------------------------------------------------------------------
/*struct*/ class bits(int MSB, int LSB) {
enum { msb = MSB, lsb = LSB, span = MSB-LSB+1, }
static const ulong mask = (1L << span) - 1;
ulong slice(ulong val) const { return ((val >> lsb) & mask); }
}
import std.stdio;
void main() {
ulong a = 0xFEE0DDF00D;
bits!(28,12) slicer;
auto sliced = slicer.slice(a);
writefln("slicer(28,12) : %X",slicer.slice(a));
}
---------------------------------------------------------------------------
There will not be segfault if substitute 'class' by 'struct' or declare
method bits::slice as static
(as 'static ulong slice(ulong val) { return ((val >> lsb) & mask);' } ).
Thanks,
Alexander
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