Language
C++
Compiler
gcc HEAD 11.0.0 20200914 (experimental)
Options
Warnings
Boost 1.73.0
C++2a(GNU)
no pedantic
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=gnu++2a Exit Code:
1
C++
gcc HEAD 11.0.0 20200914 (experimental)
$ g++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/gcc-head/include -std=gnu++2a prog.cc: In function 'const double& bar()':
prog.cc:8:11: warning: returning reference to temporary [-Wreturn-local-addr]
8 | return f; // C4172
| ^
/usr/lib/x86_64-linux-gnu/crt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status