Language
C++
Compiler
gcc HEAD 11.0.0 20200919 (experimental)
Options
Warnings
Boost 1.73.0
C++11
-pedantic
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=c++11 -pedantic Exit Code:
1
C++
gcc HEAD 11.0.0 20200919 (experimental)
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=c++11 -pedantic prog.cc: In constructor 'A::A(int)':
prog.cc:7:9: warning: 'A::y' will be initialized after [-Wreorder]
7 | int y;
| ^
prog.cc:6:9: warning: 'int A::x' [-Wreorder]
6 | int x;
| ^
prog.cc:5:5: warning: when initialized here [-Wreorder]
5 | A(int a) : y(a), x(y) {} // C5038, Initialized in reverse, y reused
| ^
/usr/lib/x86_64-linux-gnu/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status