Wandbox

Ran/Viewed Log

Language

C++

Compiler

gcc HEAD 11.0.0 20200919 (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

prog.cc:4:14: warning: multi-character character constant [-Wmultichar]
    4 |    char c1 = '\u03a0';   // C4566
      |              ^~~~~~~~
prog.cc:5:14: warning: multi-character character constant [-Wmultichar]
    5 |    char c2 = '\u0642';   // C4566
      |              ^~~~~~~~
prog.cc: In function 'int main()':
prog.cc:4:14: warning: overflow in conversion from 'int' to 'char' changes value from '52896' to ''\37777777640'' [-Woverflow]
    4 |    char c1 = '\u03a0';   // C4566
      |              ^~~~~~~~
prog.cc:5:14: warning: overflow in conversion from 'int' to 'char' changes value from '55682' to ''\37777777602'' [-Woverflow]
    5 |    char c2 = '\u0642';   // C4566
      |              ^~~~~~~~
prog.cc:4:9: warning: unused variable 'c1' [-Wunused-variable]
    4 |    char c1 = '\u03a0';   // C4566
      |         ^~
prog.cc:5:9: warning: unused variable 'c2' [-Wunused-variable]
    5 |    char c2 = '\u0642';   // C4566
      |         ^~
prog.cc:7:12: warning: unused variable 'c3' [-Wunused-variable]
    7 |    wchar_t c3 = L'\u03a0';   // OK
      |            ^~
prog.cc:8:12: warning: unused variable 'c4' [-Wunused-variable]
    8 |    wchar_t c4 = L'\u0642';   // OK
      |            ^~

Exit Code:

0