[Cfp-interest] printf, NaN, infinity
Fred J. Tydeman
tydeman at tybor.com
Mon Nov 26 13:07:07 PST 2018
On Mon, 26 Nov 2018 10:33:04 -0800 Jim Thomas wrote:
>
>Couldn't the security problem be addressed by limiting the length of any n-char-sequence that might appear in printf output of nan(n-char-sequence), perhaps to the value of an implementation-defined macro? The macro value could be zero if the implementation never printed n-char-sequences.
>
While that would work, would it not also introduce release-to-release
incompatible changes?
My understanding is some implementations output English text describing
what the payload means.
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Fred J. Tydeman Tydeman Consulting
tydeman at tybor.com Testing, numerics, programming
+1 (702) 608-6093 Vice-chair of PL22.11 (ANSI "C")
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