Language
C++
Compiler
gcc HEAD 13.0.0 20220521 (experimental)
Options
Warnings
Don't Use Boost
C++17
-pedantic
$ g++ prog.cc -Wall -Wextra -std=c++17 -pedantic Exit Code:
1
C++
gcc HEAD 13.0.0 20220521 (experimental)
$ g++ prog.cc -Wall -Wextra -std=c++17 -pedantic prog.cc:7:5: error: attempt to use poisoned "putchar"
7 | putchar('A'); // fails to compile (as expected)
| ^
prog.cc:9:5: error: attempt to use poisoned "vfprintf"
9 | vfprintf(stdout, "Hello %s!\n", vlist); // does not fail (not expected)
| ^
prog.cc: In function 'void fn(const char*, ...)':
prog.cc:5:21: warning: unused parameter 'fmt' [-Wunused-parameter]
5 | void fn(const char* fmt, ...)
| ~~~~~~~~~~~~^~~