Language
C++
Compiler
gcc HEAD 9.0.1 20190224 (experimental)
Options
Boost 1.69.0
C++2a(GNU)
no pedantic
$ g++ prog.cc -I/opt/wandbox/boost-1.69.0/gcc-head/include -std=gnu++2a
{1,10}{2,20}{3,30}{4,40}{5,50}{6,60}
{1,10}{2,20}{3,30}{5,50}{6,60}
{2,20}{3,30}{5,50}{6,60}
Exit Code:
0