• Hiroshi Sakurai (16/17) Dec 28 2004 Hi.
• Thomas Kuehne (11/11) Dec 29 2004 -----BEGIN PGP SIGNED MESSAGE-----
• Jarrett Billingsley (6/6) Dec 31 2004 I noticed this too. Sometimes it'll say something like "Cannot convert
• Walter (6/18) Mar 09 2005 uint

Hiroshi Sakurai <Hiroshi_member pathlink.com> writes:

Hi.

An error occurs in following codes at the time of compile.
It checked with the Windows version compiler v0.109.

test.d
int main() {
uint a;

a = 1 << 31;
printf("%d\n", a);
return 0;
}

dmd test.d

test.d(4): cannot implicitly convert expression 1 << 31 of type int to uint

Thanks,
Hiroshi Sakurai

---------------------------------
Japanese D wiki BugTrack
http://f17.aaa.livedoor.jp/~labamba/?BugTrackhttp://f17.aaa.livedoor.jp/~labamba/?BugTrack%2F10

"Thomas Kuehne" <thomas-dloop kuehne.cn> writes:

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Hash: SHA1

Added to DStress as
http://dstress.kuehne.cn/run/cast_06.d
http://dstress.kuehne.cn/run/cast_07.d

Thomas

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"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

I noticed this too.  Sometimes it'll say something like "Cannot convert
0xfffffffff093850a to uint", which leads me to believe that it's
interpreting the constant as a long (64-bit int).  The 0.105 changelog says
" Changed integral literal type determination to match C99 6.4.4.1."  Would
be interesting to see if the bug is in 0.104 or 0.105 (I missed the DMD
downloads for 0.103 through 0.108).

"Walter" <newshound digitalmars.com> writes:

"Hiroshi Sakurai" <Hiroshi_member pathlink.com> wrote in message
news:cqtmid$3no$1 digitaldaemon.com...
 Hi.

 An error occurs in following codes at the time of compile.
 It checked with the Windows version compiler v0.109.

 test.d
 int main() {
 uint a;

 a = 1 << 31;
 printf("%d\n", a);
 return 0;
 }

dmd test.d

 test.d(4): cannot implicitly convert expression 1 << 31 of type int to

uint

That's right. The sign change changes the meaning, hence the message. I
suggest rewriting to:

    1u << 31