www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.bugs - [Issue 870] New: contradictory error messages for templates

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=870

           Summary: contradictory error messages for templates
           Product: D
           Version: 1.00
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: minor
          Priority: P3
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: thomas-dloop kuehne.cn


1  template Templ(alias a) {
2    void Templ(...) {
3    }
4  }
5
6  void main() {
7    int i;
8    Templ(i);
9  }

a.d(8): template a.Templ(alias a) does not match any template declaration
a.d(8): template a.Templ(alias a) cannot deduce template function from argument 
types (int)

The two error messages are contradictory:
1) either there was no match and thus the second error messages is wrong
2) or the second message is correct(though doesn't mention line 2) and the 
first message is incorrect

After rewriting the sample:
1  template Templ2(alias a) {
2    void Templ2(x) {
3    }
4  }
5
6  void main() {
7    int i;
8    Templ2(i);
9  }

Error: identifier 'x' is not defined
Error: x is used as a type
a.d(8): template a.Templ2(alias a) does not match any template declaration
a.d(8): template a.Templ2(alias a) cannot deduce template function from 
argument types (int)

The first two messages are missing the location information.


--
Jan 21 2007
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=870






*** Bug 871 has been marked as a duplicate of this bug. ***


--
Jan 22 2007
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=870






The idea with multiple error messages is that the first one is correct, and any
that follow should be viewed with suspicion because the compiler attempts to
correct the error and move on. Of course, it can guess wrong about what is
intended.


--
Jun 27 2008
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=870






Fixed dmd 2.016


--
Jul 09 2008
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=870


Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |clugdbug yahoo.com.au
         Resolution|                            |FIXED




-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
Jun 08 2009