nasm - Ubuntu 19.04 更新后 getchar 函数的工作方式不同？

Answer 1

I have found a fix.

To clear the stream state properly, I had to clear it from both my C++ file with cin.clear(); and within my Assembly file, I cleared the stream by performing:

extern stdin
extern clearerr

mov rax, 0
mov rdi, [stdin]
call clearerr

This made it so I could successfully perform call getchar to grab user input after using CTRL+D to end an input stream.