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From: Jonathan Wakely (cow_at_[hidden])
Date: 2005-08-25 05:42:20

Rupert Kittinger wrote:

> In the tuple_io.hpp header, there seems to be a slight problem in
> extract_and_check_delimiter(). The following snippet is problematic:
> char c;
> if (is_delimiter) {
> is >> c;
> if (c!=d) {
> is.setstate(std::ios::failbit);
> }
> }
> If c cannot be read because is.eof(), the result of c!=d is undefined.

IMHO the fix is neater as:

     if (is>>c && c!=d)

basic_ios::operator void*() exists to support this syntax rather than
explicitly testing the state with good(), fail() etc.


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