Language
C++
Compiler
gcc HEAD 11.0.0 20200918 (experimental)
Options
Warnings
Boost 1.73.0
C++2a(GNU)
-pedantic
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=gnu++2a -pedantic Exit Code:
0
C++
gcc HEAD 11.0.0 20200918 (experimental)
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=gnu++2a -pedantic prog.cc: In function 'int main()':
prog.cc:11:9: warning: left operand of comma operator is a reference, not call, to function 'f' [-Waddress]
11 | if ( f, k ) // C4546
| ^
prog.cc:11:9: warning: left operand of comma operator has no effect [-Wunused-value]