🚀 go-pugleaf

In article <3648@skye.ed.ac.uk> richard@aiai.UUCP (Richard Tobin) writes:

> Or else you must save and restore errno.  Is this guaranteed to work?

I had thought not, but apparently the answer is "yes" because 4.1.3
says that errno expands to a "modifiable lvalue" and 4.9.10.4 says that perror()
"maps the error number in the integer expression errno to an error message"

So I guess you're right.  OK.

In <8215:Oct2521:30:3890@kramden.acf.nyu.edu>,
Dan Bernstein <brnstnd@kramden.acf.nyu.edu> suggested using
sys_errlist[] which is not standard.  I suppose you can always provide
a strerror() written in terms of sys_errlist[] if you don't already have
strerror() [4.11.6.2].  Many people don't have strerror() which is why
I did not mention it previously.  (I have it, though)

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