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Language

C++

Compiler

clang HEAD 12.0.0 (https://github.com/llvm/llvm-project.git 344a3d0bc0fb0868b519c3342b4982d6121eece3)

Options
Warnings
Boost 1.73.0
C++2a
no pedantic
Raw compiler options
-Wsign-conversion

$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/clang-head/include -std=c++2a -Wsign-conversion
prog.cc:7:18: warning: unused parameter 'i' [-Wunused-parameter]
void Test(size_t i) {}
                 ^
prog.cc:13:6: warning: implicit conversion changes signedness: 'unsigned int' to 'int' [-Wsign-conversion]
   f(n);   // C4365
   ~ ^
prog.cc:16:10: warning: implicit conversion changes signedness: 'int' to 'size_t' (aka 'unsigned long') [-Wsign-conversion]
   Test( -19 );   // C4365
   ~~~~  ^~~
3 warnings generated.
Exit Code:
0