Or just read the diagnostics and fix the code (or use UBSan). Clang outputs: >variable 'c' is used uninitialized whenever 'if' condition is false [-Wsometimes-

Or just read the diagnostics and fix the code (or use UBSan). Clang outputs: >variable 'c' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]