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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

$ clang++ prog.cc -Wall -Wextra -I/opt/wandbox/boost-1.73.0/clang-head/include -std=c++2a 
prog.cc:4:11: warning: cast to 'void *' from smaller integer type 'int' [-Wint-to-void-pointer-cast]
   return (void*)i;   // C4312 for 64-bit targets
          ^~~~~~~~
prog.cc:7:10: error: unknown type name '__int64'
void* f2(__int64 i) {
         ^
1 warning and 1 error generated.
Exit Code:
1