https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70075
--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Eric Gallager from comment #2) > > I get this output on i386-apple-darwin9.8.0 with gcc8: > > $ /usr/local/bin/g++ -Wall -Wextra -Wpedantic -o 70075.exe 70075.cc > 70075.cc: In function ‘void bar(int)’: > 70075.cc:4:13: warning: ISO C++ forbids variable length array ‘a’ [-Wvla] > char a[m][n] = { { 0, 1, 2 } }; > ^ > $ ./70075.exe > 0 1 2 0 0 0 -32 -113 > $ > > (i.e. no errors) Running the program on x86_64-apple-darwin10.8.0 with gcc9, it prints this instead: 0 1 2 0 9 0 0 0 (still no errors though)