[Issue 5765] ^^ and with BigInts
http://d.puremagic.com/issues/show_bug.cgi?id=5765 Don clugd...@yahoo.com.au changed: What|Removed |Added CC||clugd...@yahoo.com.au --- Comment #1 from Don clugd...@yahoo.com.au 2011-03-22 00:39:07 PDT --- Those operations could easily be allowed. But it's not an accident that they're not currently implemented. The question is, is it a good idea? anything ^^ BigInt and anything BigInt will ALWAYS overflow, if the BigInt doesn't actually fit into an int. So except for a few toy cases, such as the example here, such operations are always bugs in the user's code. Do we really want to allow such a bug-prone operation which provides no useful functionality? -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5766] New: undefined reference to `_D3std4bind12__ModuleInfoZ'
http://d.puremagic.com/issues/show_bug.cgi?id=5766 Summary: undefined reference to `_D3std4bind12__ModuleInfoZ' Product: D Version: D2 Platform: Other OS/Version: Linux Status: NEW Severity: regression Priority: P2 Component: DMD AssignedTo: nob...@puremagic.com ReportedBy: chang...@gmail.com --- Comment #0 from changlon chang...@gmail.com 2011-03-22 01:17:19 PDT --- I am not sure this is a dmd or phobos bug, I use dmd 2.052 build and pass this in windows, I use gdc v2 build this on linux, and all code is execute correct but cat a Segmentation fault at /lifetime.d:1122 ( see https://bitbucket.org/goshawk/gdc/issue/171/segmentation-fault-on-linux) . I build this project on linux 32 and 64 version both cacht this error , the dmd version is dmd2.052 release and download form ftp.digitalmars.com jade2test.o:(.data+0x197c): undefined reference to `_D3std4bind12__ModuleInfoZ' collect2: ld returned 1 exit status --- errorlevel 1 the source code is here : http://gool.googlecode.com/files/jade_dmd_bug.tar.bz2 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5766] undefined reference to `_D3std4bind12__ModuleInfoZ'
http://d.puremagic.com/issues/show_bug.cgi?id=5766 --- Comment #1 from changlon chang...@gmail.com 2011-03-22 01:41:18 PDT --- I am wrong about the windows can pass this , I am not woring on windows recently . The latest time I check it still build and pass on windows . Now I check agian , The windows throw the same error like GDC dose , Unhandled Exception: EXCEPTION_ACCESS_VIOLATION(0xc005) at _rt_finalize (0x0045db0e) thread(1256) -Unhandled Exception: EXCEPTION_ACCESS_VIOLATION(0xc005) at _rt_finalize (0x0045db0e) thread(1256) . -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5765] ^^ and with BigInts
http://d.puremagic.com/issues/show_bug.cgi?id=5765
--- Comment #2 from bearophile_h...@eml.cc 2011-03-22 02:29:39 PDT ---
Here n needs to be a BigInt, because of the second recursive call. So instead
of writing 2^^n you need to write BigInt(2)^^n.toInt() that's not natural (this
code will probably work in DMD 2.053 thanks to a -0 bug you have fixed):
import std.stdio, std.bigint;
/// Optimized Ackermann function
BigInt ackermann(int m, BigInt n) {
if (m == 0) return n + 1;
if (m == 1) return n + 2;
if (m == 2) return 3 + n * 2;
//if (m == 3) return 5 + 8 * (2 ^^ n - 1);
if (m == 3) return 5 + 8 * (BigInt(2) ^^ n.toInt() - 1);
if (n == 0)
return ackermann(m - 1, BigInt(1));
else
return ackermann(m - 1, ackermann(m, n - 1));
}
void main() {
writeln(ackermann(4, BigInt(2)));
}
Equivalent Python2.6 code that works:
def ackermann(m, n):
Optimized Ackermann function
if m == 0: return n + 1
if m == 1: return n + 2
if m == 2: return 3 + n * 2
if m == 3: return 5 + 8 * (2 ** n - 1)
if n == 0:
return ackermann(m - 1, 1)
else:
return ackermann(m - 1, ackermann(m, n - 1))
assert len(str(ackermann(4, 2))) == 19729
--
Two little about BigInt (maybe it's wrong to put those in this bug report):
How do I perform the equivalent of str(ackermann(4, 2)) with BigInt?
The bottom of this page shows a duplication to me:
http://www.digitalmars.com/d/2.0/phobos/std_bigint.html
The output format is controlled via formatString:
The output format is controlled via formatString: d Decimal
x Hexadecimal, lower case
X Hexadecimal, upper case
s Default formatting (same as d)
null Default formatting (same as d)
d Decimal
x Hexadecimal, lower case
X Hexadecimal, upper case
s Default formatting (same as d)
null Default formatting (same as d)
--
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[Issue 5767] New: Optlink crash
http://d.puremagic.com/issues/show_bug.cgi?id=5767 Summary: Optlink crash Product: D Version: D2 Platform: Other OS/Version: Windows Status: NEW Severity: normal Priority: P2 Component: Optlink AssignedTo: nob...@puremagic.com ReportedBy: andrej.mitrov...@gmail.com --- Comment #0 from Andrej Mitrovic andrej.mitrov...@gmail.com 2011-03-22 15:08:43 PDT --- Using: OPTLINK (R) for Win32 Release 8.00.11 No test case yet. If I comment out just one call to writefln(), then the linker won't crash. Otherwise it crashes with: --- Unexpected OPTLINK Termination at EIP= --- EAX=0001 EBX=0034 ECX= EDX=003C ESI=00441BD0 EDI=02540008 EBP=0012FFF0 ESP=0012FF8C First=00402000 --- The project has about 20 files divided into libraries, about 6000 lines. So here's what I'll do: If I can successfully compile my project with GDC, then I won't bother even with Optlink. Otherwise I'll do what I can to make a simple test case. Have I mentioned how much I hate Optlink? -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5767] Optlink crash
http://d.puremagic.com/issues/show_bug.cgi?id=5767 changlon chang...@gmail.com changed: What|Removed |Added CC||chang...@gmail.com --- Comment #1 from changlon chang...@gmail.com 2011-03-22 18:04:38 PDT --- There is a optlink 8.00.12, you may want try it . -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 3836] [TDPL] obligatory override attribute
http://d.puremagic.com/issues/show_bug.cgi?id=3836 Jonathan M Davis jmdavisp...@gmx.com changed: What|Removed |Added CC||jmdavisp...@gmx.com Summary|obligatory override |[TDPL] obligatory override |attribute |attribute --- Comment #1 from Jonathan M Davis jmdavisp...@gmx.com 2011-03-22 18:16:39 PDT --- override is obligatory according to TDPL. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5767] Optlink crash
http://d.puremagic.com/issues/show_bug.cgi?id=5767 --- Comment #2 from Andrej Mitrovic andrej.mitrov...@gmail.com 2011-03-22 18:25:01 PDT --- Nope, same results. On the other hand it looks like I'll be able to use GDC. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
[Issue 5768] New: std.uni's is* functions should return bool
http://d.puremagic.com/issues/show_bug.cgi?id=5768 Summary: std.uni's is* functions should return bool Product: D Version: unspecified Platform: Other OS/Version: Windows Status: NEW Severity: normal Priority: P2 Component: Phobos AssignedTo: nob...@puremagic.com ReportedBy: cbkbbej...@mailinator.com --- Comment #0 from Nick Sabalausky cbkbbej...@mailinator.com 2011-03-22 22:27:18 PDT --- Currently, these functions return int, but they really should be made to return bool: std.uni.isUniLower std.uni.isUniUpper std.uni.isUniAlpha -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email --- You are receiving this mail because: ---
