`#define RCNEGATE(x) (-x)` for non-kernel usage?

[jeremyhannon]

`#define RCNEGATE(x) (-x)` for non-kernel usage?

[rurban]

That was a decision by Cisco. I'll ask them

[rurban]

I'll act according to the documentation, and existing C11 AnnexK library implementations.

So the printf family needs to return negative error numbers. Fixed that with 4e7cc24

Wrong: printf without n (non-truncating) return 0 or -1, setting errno.
truncating printf return -1, setting errno. Fixed with #24

[rurban]

The other str*_s functions which do return errno_t definitely return positive errnum's.
The return type errno_t also suggests returning a positive errno as with most other errno's.

E.g. MSVC strcpy_s returns either EINVAL for our ESNULLP or ERANGE for our ESNOSPC.
So I think we are now done with that.

[jeremyhannon]

👍 Ok so for functions with errno_t return type, return a positive error number. For functions with int return type, return a negative number.