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Reworked mismatch tests to count the number of comparisons, and make sure we are conforming with LWG2404. We are

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@222159 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2014-11-17 18:52:25 +00:00
parent cfeac66f8c
commit 36628eb77a
2 changed files with 47 additions and 58 deletions
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47
test/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp
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@@ -28,39 +28,26 @@ int main()
int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
int ib[] = {0, 1, 2, 3, 0, 1, 2, 3};
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
const unsigned sb = sizeof(ib)/sizeof(ib[0]);
assert(std::mismatch(comma_iterator<const int*>(ia),
comma_iterator<const int*>(ia + sa),
comma_iterator<const int*>(ib)) ==
(std::pair<comma_iterator<const int*>,
comma_iterator<const int*> >(
comma_iterator<const int*>(ia+3),
comma_iterator<const int*>(ib+3))));
typedef input_iterator<const int*> II;
typedef random_access_iterator<const int*> RAI;
assert(std::mismatch(II(ia), II(ia + sa), II(ib))
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib))
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
input_iterator<const int*>(ib + sa)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+sb))
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
input_iterator<const int*>(ib + 2)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+2),
input_iterator<const int*>(ib+2))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), II(ib+sb))
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3)))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+2))
== (std::pair<II, II>(II(ia+2), II(ib+2))));
#endif
}