http://d.puremagic.com/issues/show_bug.cgi?id=6639

           Summary: Difference beetwen "foo" and "foo"c
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: zeljko.grk@gmail.com


--- Comment #0 from zeljkog <zeljko.grk@gmail.com> 2011-09-10 14:37:57 CEST ---
After thinking a bit more I have concluded its important consistency issue. So I reposted it as separate issue.

import std.stdio;

void f(S)(S str){
    writeln(str);
}

alias f!(string) fc;
alias f!(wstring) fc;

void main(){
    fc("foo");      // L11

//~     fc("foo"c);     // works
//~     auto s = "foo";
//~     fc(s);       // works
}

//~ Compilation (dmd 2.055) breaks with message:

//~ bug.d(11): Error: function alias bug.f called with argument types:
//~     ((string))
//~ matches both:
//~     bug.f!(string).f(string str)
//~ and:
//~     bug.f!(immutable(wchar)[]).f(immutable(wchar)[] str)

Maybe lexer should annotate string literal without StringPostfix according source code format?

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yebblies <yebblies@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |yebblies@gmail.com
         Resolution|                            |DUPLICATE


--- Comment #1 from yebblies <yebblies@gmail.com> 2011-09-10 23:42:26 EST ---
It should work the same for function calls as it does for type deduction: an untyped string literal should default to immutable(char)[].

Fortunately there's already a patch for this.

*** This issue has been marked as a duplicate of issue 2367 ***

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--- Comment #2 from zeljkog <zeljko.grk@gmail.com> 2011-09-10 17:12:58 CEST ---
Sorry for  duplication.

My point is maybe we don’t need unannotated string literal out of lexer. Maybe c is better default, but we need simple rule.

Confess I’m not aware of all consequences. Something to think about, maybe?

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--- Comment #3 from yebblies <yebblies@gmail.com> 2011-09-11 01:36:14 EST ---
(In reply to comment #2)
> My point is maybe we don’t need unannotated string literal out of lexer. Maybe c is better default, but we need simple rule.
> 
> Confess I’m not aware of all consequences. Something to think about, maybe?

We actually do need it to be initially untyped.  If every string literal was
implicitly utf-8, the following functions could not be called with a literal:
void fun(wstring s);
void fun(dstring s);
void fun(const(char)* s);

What is important is that a default type can be automatically used, and it
already works this way some of the time.
auto x = "blah blah"; // x is typed as string

Extending this default type to function calls seems natural to me.

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