January 17, 2008 [Issue 1789] New: Template overloading doesn't work | ||||
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http://d.puremagic.com/issues/show_bug.cgi?id=1789 Summary: Template overloading doesn't work Product: D Version: 1.025 Platform: PC OS/Version: All Status: NEW Keywords: rejects-valid Severity: normal Priority: P2 Component: DMD AssignedTo: bugzilla@digitalmars.com ReportedBy: aarti@interia.pl void pattern(T)(T v) {} T pattern(T)() {return T.init;} void main() { pattern!(int)(5); } --------- Above code results in compile time error: quicktest.d(6): template instance pattern!(int) matches more than one template declaration, pattern(T) and pattern(T) quicktest.d(6): Error: template instance 'pattern!(int)' is not a variable quicktest.d(6): Error: function expected before (), not pattern!(int) of type int --------- As you see it is standard D setter/getter approach with templates. What's more interesting, when we call pattern template function with IFTI it calls proper function: pattern(5); //calls setter but: pattern; // is error BTW: I hope that in DMD 2.0 writefln; will be also allowed. Currently it doesn't work - you have to write writefln(); Ref: http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D.learn&article_id=10766 Similar to: #1193 -- |
August 29, 2008 [Issue 1789] Template overloading doesn't work | ||||
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Posted in reply to d-bugmail | http://d.puremagic.com/issues/show_bug.cgi?id=1789 bugzilla@digitalmars.com changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX ------- Comment #1 from bugzilla@digitalmars.com 2008-08-29 00:29 ------- That's the way it is designed to work, overloading of templates with the template arguments overloads based on only the template argument list. You can achieve what you wish with the following: template pattern(T) { void foo(T v) {} T foo() { return T.init; } } alias pattern!(int).foo bar; void main() { pattern!(int).foo(5); pattern!(int).foo = 5; int x = pattern!(int).foo; bar = 5; int y = bar; } -- |
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