I doubt it very much: cout is so bad (ever tried to display an hexadecimal number? Barf!) that in many case printf is used instead even though it isn't typesafe

I doubt it very much: cout is so bad (ever tried to display an hexadecimal number? Barf!) that in many case printf is used instead even though it isn't typesafe. Which isn't so bad when you use a static checker in the CI, which you should anyway the C++ being so full of traps.