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Postings from January 2012
Sam's answer indicates that this is is a result of an efficient
implementation within Perl, which I would argue, using the principle of
least surprise, is a bug if it gives incorrect answers for math that could
be handled within an int. Perhaps a pragma forcing the local implementation
to be used would be a reasonable compromise.
I'm not sure Graham's answer covers it -- program below prints "247", while
perl prints "246", so sprintf isn't behaving the same as the underlying C.
-- Sal
smile.
#include <stdio.h>
int main(void)
{
float a = 2.47;
char buf[100];
sprintf(buf, "%d", int(a * 100));
printf("%s\n", buf);
return 0;
}
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