strcat+strcat+strcat == baaad

David Laight david at
Mon Dec 2 03:06:59 CST 2002

> probably that
> you were underestimating the time required to parse the format string,
> which is probably greater than anything else. Everything else is simple
> searching and copying whereas the parsing is probably at least a
> quadratic-order function.

No it will be linear (on the length of the format string).
But just rather more expensive than you probably expect.
There is a lot of red tape lurking.


David Laight: david at

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