Incorrect position of partial match when using u32regexes

[mkrasowski@…]

Hi,

I got a problem with results of partial matches when using ICU Unicode strings and u32regex_iterator. The regular expression is created with default flags and search is done using match_perl | match_partial. Tested on 64bit Linux, boost compiled against ICU 53 with gcc 4.9.

When searched for regular experession: "summary" in string "in summary in math we are using sum", and for regular expressions based on std::string got the following results:

match length: 7 match position: 3 matched: summary match length: 0 match position: 32 matched: sum

when doing search using icu::UnicodeString and u32regex_iterator got the following result:

match length: 7 match position: 3 matched: summary match length: 0 match position: 35 matched:

So in both cases the partial match is found but in the latter the returned position is incorrect.

I attached a simple application I used for testing.

Regards, marcin

[mkrasowski@…]

simple program used for testing

[John Maddock]

With apologies for the delay, fixed in ​https://github.com/boostorg/regex/commit/f6a9bce728c8451d212836460aece6dfb7aa0896