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Guard against a possible NULL

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This commit is contained in:
John Wiegley 2013-01-11 00:10:30 -06:00
parent 63a14fd5e0
commit 82ac7ef313
1 changed files with 2 additions and 1 deletions
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3
src/filters.cc
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@ -983,7 +983,8 @@ void interval_posts::flush()
sort_posts_by_date());
// Determine the beginning interval by using the earliest post
if (! interval.find_period(all_posts.front()->date()))
if (all_posts.front() &&
! interval.find_period(all_posts.front()->date()))
throw_(std::logic_error, _("Failed to find period for interval report"));
// Walk the interval forward reporting all posts within each one