I code C pretty extensively and am pretty involved in the community. I rarely hear inline asm (itself, not the invocation) referred to as C; in fact it's pretty

I code C pretty extensively and am pretty involved in the community. I rarely hear inline asm (itself, not the invocation) referred to as C; in fact it's pretty explicitly made clear by the general community that you should clearly delineate and cleanly separate asm code and mark that logic as machine specific. The __asm__ inliner is referred to as C, sure; but not the code itself. That would be like calling FFI'd C in Rust, "rust code". In addition, it 100% is in the standard beginning with "ANSI C" (C89): > C89/C90 standard (ISO/IEC 9899:1990): > * G.5.10 The asm keyword https://en.cppreference.com/w/c/language/asm https://en.cppreference.com/w/c/language/asm It's just an optional extension for compilers versus a core language feature.