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May 05, 2009 [Issue 2940] New: null is null cannot be evaluated at compile time | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=2940 Summary: null is null cannot be evaluated at compile time Product: D Version: 1.042 Platform: PC OS/Version: Windows Status: NEW Keywords: patch, rejects-valid Severity: normal Priority: P2 Component: DMD AssignedTo: bugzilla@digitalmars.com ReportedBy: clugdbug@yahoo.com.au static assert(null is null); --- bug.d(1): Error: static assert (null is null) is not evaluatable at compile t ime Whereas the code below compiles fine: int main(){ return (null is null); } --- This also applies to similar kinds of expressions, eg (null is typeid(int)). The patch for this relies on my patch for 1524, otherwise you get an ICE with "null is typeid(int)". -- |
May 05, 2009 [Issue 2940] null is null cannot be evaluated at compile time | ||||
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Posted in reply to d-bugmail | http://d.puremagic.com/issues/show_bug.cgi?id=2940 ------- Comment #1 from clugdbug@yahoo.com.au 2009-05-05 03:01 ------- PATCH in optimize.c, line 779, in IdentityExp::optimize(int result) Just allow TOKnull as one of the parameters. OLD: if (this->e1->isConst() && this->e2->isConst()) { e = Identity(op, type, this->e1, this->e2); } NEW: if ((this->e1->isConst() || this->e1->op == TOKnull) && (this->e2->isConst()|| this->e2->op == TOKnull)) { e = Identity(op, type, this->e1, this->e2); } -- |
May 05, 2009 [Issue 2940] null is null cannot be evaluated at compile time | ||||
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Posted in reply to d-bugmail | http://d.puremagic.com/issues/show_bug.cgi?id=2940 ------- Comment #2 from tomas@famolsen.dk 2009-05-05 06:35 ------- Does things break if NullExp::isConst() was just implemented? After all, null is constant... -- |
September 03, 2009 [Issue 2940] null is null cannot be evaluated at compile time | ||||
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Posted in reply to d-bugmail | http://d.puremagic.com/issues/show_bug.cgi?id=2940 Walter Bright <bugzilla@digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #3 from Walter Bright <bugzilla@digitalmars.com> 2009-09-03 13:25:00 PDT --- Fixed dmd 1.047 and 2.032 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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