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[range] Merge Boost.Range bug fixes to release branch (fixes #6944; fixes #7407; fixes #7408; fixes #7731; fixes #7827; fixes #8338; fixes #8453).

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[SVN r84823]
This commit is contained in:
Nathan Ridge
2013-06-18 02:22:07 +00:00
parent 58d57f9b7b
commit 43d2ca8549
13 changed files with 115 additions and 26 deletions
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18
test/irange.cpp
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@ -35,15 +35,6 @@ namespace boost
reference.begin(), reference.end() );
}
template<typename Integer>
std::ptrdiff_t test_irange_calculate_num_steps(Integer first, Integer last, int step)
{
const std::ptrdiff_t sz = static_cast<std::ptrdiff_t>(step >= 0 ? step : -step);
const std::ptrdiff_t l = static_cast<std::ptrdiff_t>(step >= 0 ? last : first);
const std::ptrdiff_t f = static_cast<std::ptrdiff_t>(step >= 0 ? first : last);
return (l + ((l-f) % sz) - f) / sz;
}
// Test an integer range with a runtime specified step size.
template<typename Integer, typename IntegerInput>
void test_irange_impl(IntegerInput first, IntegerInput last, int step)
@ -58,9 +49,12 @@ namespace boost
std::vector<Integer> reference;
const std::ptrdiff_t num_steps = test_irange_calculate_num_steps(first, last, step);
Integer current_value = first;
for (std::ptrdiff_t i = 0; i < num_steps; ++i, current_value += step)
const std::ptrdiff_t first_p = static_cast<std::ptrdiff_t>(first);
const std::ptrdiff_t last_p = static_cast<std::ptrdiff_t>(last);
const std::ptrdiff_t step_p = static_cast<std::ptrdiff_t>(step);
for (std::ptrdiff_t current_value = first_p;
step_p >= 0 ? current_value < last_p : current_value > last_p;
current_value += step_p)
reference.push_back(current_value);
std::vector<Integer> test;