Hello
Quoting from this page:
http://man7.org/linux/man-pages/man3/errno.3.html
"a function that succeeds is allowed to change errno."
^ This sounds clear, e.g. open() can change errno to 0, when it returns
a valid fd handle.
"Valid error numbers are all nonzero; errno is never set to zero by any
system
call or library function."
^ This seems to be counter what the earlier line said. Therefore, open()
wouldn't be allowed to change errno to 0.
Have I missed something?
Best regards, Jon
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