On Thu, Jan 10, 2013 at 11:31 PM, Vicente J. Botet Escriba <vicente.botet@wanadoo.fr> wrote:
Le 10/01/13 20:12, Andrey Semashev a écrit :
On Thu, Jan 10, 2013 at 10:51 PM, Vicente J. Botet Escriba <vicente.botet@wanadoo.fr> wrote:
Le 10/01/13 19:13, Andrey Semashev a écrit :
The constructor doesn't make any difference, it's the at() method body that causes the error.
Yes it does.
The implicit default constructor is constexpr when possible, so defining it constexpr explicitly doesn't make any difference.
The error message is a QOI. Here it is the error with clang 3.1/3.2
clang-darwin.compile.c++ ../../../bin.v2/libs/thread/test/test_so.test/clang-darwin-3.1xl/debug/threading-multi/test_so.o ../example/test_so.cpp:20:12: error: non-type template argument is not a constant expression check< arr.at(10) > a; ^~~~~~~~~~ ../example/test_so.cpp:7:30: note: subexpression not valid in a constant expression
return i < n ? T() : throw 0; ^ ../example/test_so.cpp:20:12: note: in call to '10->at()' check< arr.at(10) > a; ^
This looks better, thanks.