[En-Nut-Discussion] Bug in putf

[Ralph Mason]

Hi,

I noticed a bug in putf

When you print an unsigned value that is greater than the max signed value
for the type putf has a problem.  The code putf sign extends the unsigned
value into a long (because it treats the unsigned value as signed when it
copies to ulval)

thus

buff[32];
sprintf(buff,"%u",0xffff);

Yields a very unexpected result (0xffffffff formatted as an unsigned long).

Ralph


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