digitalmars.D.bugs - [Issue 3175] New: rejects templated ref return function
- d-bugmail puremagic.com (38/38) Jul 14 2009 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (25/25) Nov 18 2009 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (10/10) Sep 20 2010 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (24/24) Sep 25 2010 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (11/11) Sep 27 2010 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (9/11) Sep 27 2010 http://d.puremagic.com/issues/show_bug.cgi?id=3175
- d-bugmail puremagic.com (13/20) Nov 23 2010 http://d.puremagic.com/issues/show_bug.cgi?id=3175
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Summary: rejects templated ref return function Product: D Version: 2.031 Platform: Other OS/Version: Windows Status: NEW Keywords: rejects-valid Severity: normal Priority: P2 Component: DMD AssignedTo: nobody puremagic.com ReportedBy: k-foley onu.edu import std.stdio; // This works //ref int x(int[3] p) { return p[0]; } // This works //ref T x(T)(T[3] p) { return p[0]; } // This does not work //ref int x(size_t N)(int[N] p) if ( N > 0 ) { return p[0]; } // This does not work ref T x(T, size_t N)(T[N] p) if ( N > 0 ) { return p[0]; } int main() { auto a = [1, 2, 3]; a.x = 42; writeln( a ); return 0; } ---- $ rdmd test.d test.d(12): Error: variable test.N only parameters or foreach declarations can b e ref C:\d\dmd.2.031\dmd2\windows\bin\rdmd.exe: Couldn't compile or execute test.d. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Jul 14 2009
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Luther Tychonievich <lat7h virginia.edu> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lat7h virginia.edu Severity|normal |trivial 10:30:44 PST --- This is only a problem with template parameter deduction: ref int foo(int x)(int[x] v) if (x>0) { return v[0]; } foo!(2)([1,2]); // works foo([1,2]); // gives "only parameters or foreach..." error message It can be sidestepped by explicit template declaration: template foo(int x) if (x>0) { ref int foo(int[x] v) { return v[0]; } } foo([1,2]); // works While obviously not as nice as function template syntax, this workaround is not difficult to read or write and contains full functionality. I posit the error message is wrong either way: declarations.c line 908 should read: error("only function return types, parameters, and foreach declarations can be ref"); -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Nov 18 2009
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Shin Fujishiro <rsinfu gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsinfu gmail.com --- *** Issue 4446 has been marked as a duplicate of this issue. *** -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 20 2010
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Shin Fujishiro <rsinfu gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |patch Severity|trivial |major --- Patch against dmd r687. deduceFunctionTemplateMatch() must reset storage class in parameter's scope as done in matchWithInstance(). --- a/src/template.c +++ b/src/template.c -887,6 +887,7 MATCH TemplateDeclaration::deduceFunctionTemplateMatch(Scope *sc, Loc loc, Objec ScopeDsymbol *paramsym = new ScopeDsymbol(); paramsym->parent = scope->parent; Scope *paramscope = scope->push(paramsym); + paramscope->stc = 0; TemplateTupleParameter *tp = isVariadic(); int tp_is_declared = 0; Increased the severity as the bug has been repeatedly reported: bug 4041, bug 4446, bug 4934 and comment 2 of bug 2460. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 25 2010
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugzilla digitalmars.com 19:35:27 PDT --- Applied the patch http://www.dsource.org/projects/dmd/changeset/695 but the bug remains. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 27 2010
http://d.puremagic.com/issues/show_bug.cgi?id=3175 ---Applied the patch http://www.dsource.org/projects/dmd/changeset/695 but the bug remains.compile? It's because the type of [1,2,3] has changed to dynamic int[]. Replacing 'auto' to 'int[3]' would make it compile. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Sep 27 2010
http://d.puremagic.com/issues/show_bug.cgi?id=3175 Don <clugdbug yahoo.com.au> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |clugdbug yahoo.com.au Resolution| |FIXEDIndeed it does work in DMD2.050. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------Applied the patch http://www.dsource.org/projects/dmd/changeset/695 but the bug remains.compile? It's because the type of [1,2,3] has changed to dynamic int[]. Replacing 'auto' to 'int[3]' would make it compile.
Nov 23 2010