scanf %x allows leading 0x?!?
Peter da Silva
peter at ficc.ferranti.com
Tue May 14 09:16:09 AEST 1991
In article <725 at taumet.com> steve at taumet.com (Stephen Clamage) writes:
> scjones at thor.sdrc.com (Larry Jones) writes:
> |I was just surprised to discover that the %x conversion specifier
> |used in the *scanf functions allows the target string to have a
> |leading 0x or 0X.
> It is the explicitly-specified behavior in ANSI C. On systems which
> do not follow the ANSI standard, you may get different behavior.
OK, whose bright idea was this? I know scanf is pretty much a loss in general,
but doesn't this further dilute its reliability?
Given:
scanf("%x%c", &integer, &byte);
With the input
4300ay
0 b
0cx
0x
Is this supposed to fail on the final example, or succeed?
--
Peter da Silva; Ferranti International Controls Corporation; +1 713 274 5180;
Sugar Land, TX 77487-5012; `-_-' "Have you hugged your wolf, today?"
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