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Le 06/01/2011 17:13, Guy Streeter a écrit :
> The man pages for the various snprintf routines indicate that they
> return the number of characters written. My testing indicates that
> they always return the number of characters required, which can be
> more or less than the space supplied.
Indeed, most comments in the API are wrong. All our snprintf functions
return the number of required characters.
> My testing also indicates that if the buffer size is indicated as
> zero, the buffer pointer is not referenced.
This is *mostly* true. We only have a couple corner cases that I should
be able to fix.
> This allows me to pass in NULL and zero to determine the required size
> before allocating the space. I would like to see that explicitly
> promised so I can count on it going forward.
Once I fix the aforementioned corner cases, we'll explicitly promise
this in the API comments. Should be ok for 1.1.