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February 15, 2014 [Issue 12172] New: Refused sum(transversal) | ||||
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https://d.puremagic.com/issues/show_bug.cgi?id=12172 Summary: Refused sum(transversal) Product: D Version: D2 Platform: x86 OS/Version: Windows Status: NEW Keywords: rejects-valid Severity: normal Priority: P2 Component: Phobos AssignedTo: nobody@puremagic.com ReportedBy: bearophile_hugs@eml.cc --- Comment #0 from bearophile_hugs@eml.cc 2014-02-15 02:01:19 PST --- import std.algorithm: reduce, sum; import std.range: transversal; alias mySum = reduce!q{a + b}; void main() { const data = [[1, 2], [10, 20]]; mySum(0, data.transversal(0)); // OK sum(0, data.transversal(0)); // Error } dmd 2.065beta3 gives: test.d(7,8): Error: template std.algorithm.sum cannot deduce function from argument types !()(int, Transversal!(const(int[])[], cast(TransverseOptions)0)), candidates are: ...\dmd2\src\phobos\std\algorithm.d(1070,6): std.algorithm.sum(R)(R r) if (isInputRange!R && !isFloatingPoint!(ElementType!R) && !isInfinite!R) ...\dmd2\src\phobos\std\algorithm.d(1115,6): std.algorithm.sum(R)(R r) if (hasSlicing!R && hasLength!R && isFloatingPoint!(ElementType!R)) ...\dmd2\src\phobos\std\algorithm.d(1145,6): std.algorithm.sum(R)(R r) if (isInputRange!R && !(hasSlicing!R && hasLength!R) && isFloatingPoint!(ElementType!R) && !isInfinite!R) -- Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
February 22, 2014 [Issue 12172] Refused sum(transversal) | ||||
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Posted in reply to bearophile_hugs@eml.cc | https://d.puremagic.com/issues/show_bug.cgi?id=12172 Peter Alexander <peter.alexander.au@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |peter.alexander.au@gmail.co | |m --- Comment #1 from Peter Alexander <peter.alexander.au@gmail.com> 2014-02-22 11:09:21 PST --- Sum doesn't allow for a seed like reduce. Is this meant to be an enhancement request, or just a mistake? FWIW: sum(data.transversal(0)) works fine. -- Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
February 23, 2014 [Issue 12172] Refused sum(transversal) | ||||
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Posted in reply to bearophile_hugs@eml.cc | https://d.puremagic.com/issues/show_bug.cgi?id=12172 bearophile_hugs@eml.cc changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID --- Comment #2 from bearophile_hugs@eml.cc 2014-02-23 13:01:05 PST --- (In reply to comment #1) > Sum doesn't allow for a seed like reduce. Is this meant to be an enhancement request, or just a mistake? Probably it's just a mistake, sorry. Closed. -- Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- |
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