PatR 8073c40477 redo nowrap_add() ...

Yahoo!'s mailer delivered the report about nowrap_add() to my spam
folder, apparently because it thinks that the signature attachments
"may contain harmful content".  :-(

nowrap_add() checks for signed overflow after the fact, so after
undefined behavior if that happens.

This rewrites nowrap_add() and moves it from end.c to integer.h.

I haven't generated any values big enough to exercise it, but the
algorithm is straightforward so I'll take it on faith.

2024-07-07 17:34:37 -07:00

4.1 KiB

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