> name mangling Can be turned off on demand for relevant symbols. > larger gap between source code and ISA There's already a huge gap between C code and mach

> name mangling Can be turned off on demand for relevant symbols. > larger gap between source code and ISA There's already a huge gap between C code and machine code (see: Undefined Behavior). C hasn't been a "portable assembler" for a very long time. > impedance mismatch when working with C APIs C++ has no problem working with C APIs.