gpg_err_code_from_errno usage

Philip Kendall pak21 at
Sat Mar 11 11:25:34 CET 2006

On Sat, Mar 11, 2006 at 06:54:54AM +0100, Nikos Mavrogiannopoulos wrote:
> But how can you be sure that calloc() (or in that case gcry_calloc)
> will set the errno? calloc is a library call which may or may not use
> a system call. Even if it works on some systems, this is a very
> non-portable construction, which will result in no error checking in
> systems that do not set errno.

gcrypt makes certain assumptions about the system on which in it is
running. One of these is ANSI C compliance (which guarantees that
calloc() will set errno). I wouldn't exactly call that "very



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