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Implement a simplified variant of std::unique_ptr<T>

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This simplified variant supports only a subset of the functionality
in `std::unique_ptr<T>`. `Catch::Detail::unique_ptr<T>` only supports
single element pointer (no array support) with default deleter.

By removing the support for custom deleters, we also avoid requiring
significant machinery to support EBO, speeding up instantiations of
`unique_ptr<T>` significantly. Catch2 also currently does not need
to support `unique_ptr<T[]>`, so that is not supported either.
This commit is contained in:
Martin Hořeňovský
2020-05-24 23:41:02 +02:00
parent 66ab942903
commit 41bbaa6d57
14 changed files with 890 additions and 8 deletions
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28
tests/SelfTest/Baselines/compact.sw.approved.txt
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@@ -1587,6 +1587,8 @@ StringManip.tests.cpp:<line number>: passed: trim(StringRef(whitespace_at_both_e
==
There is no extra whitespace here
Exception.tests.cpp:<line number>: failed: unexpected exception with message: '3.14'
UniquePtr.tests.cpp:<line number>: passed: bptr->i == 3 for: 3 == 3
UniquePtr.tests.cpp:<line number>: passed: bptr->i == 3 for: 3 == 3
MatchersRanges.tests.cpp:<line number>: passed: empty_vec, SizeIs(0) for: { } has size == 0
MatchersRanges.tests.cpp:<line number>: passed: empty_vec, !SizeIs(2) for: { } not has size == 2
MatchersRanges.tests.cpp:<line number>: passed: empty_vec, SizeIs(Lt(2)) for: { } size matches is less than 2
@@ -1794,6 +1796,9 @@ Misc.tests.cpp:<line number>: failed: ( fib[i] % 2 ) == 0 for: 1 == 0 with 1 mes
Misc.tests.cpp:<line number>: passed: ( fib[i] % 2 ) == 0 for: 0 == 0 with 1 message: 'Testing if fib[5] (8) is even'
Misc.tests.cpp:<line number>: failed: ( fib[i] % 2 ) == 0 for: 1 == 0 with 1 message: 'Testing if fib[6] (13) is even'
Misc.tests.cpp:<line number>: failed: ( fib[i] % 2 ) == 0 for: 1 == 0 with 1 message: 'Testing if fib[7] (21) is even'
UniquePtr.tests.cpp:<line number>: passed: !(lval.has_moved) for: !false
UniquePtr.tests.cpp:<line number>: passed: rval.has_moved for: true
UniquePtr.tests.cpp:<line number>: passed: *ptr == std::tuple<int, double, int>{1, 2., 3} for: {?} == {?}
InternalBenchmark.tests.cpp:<line number>: passed: m == 19. for: 19.0 == 19.0
InternalBenchmark.tests.cpp:<line number>: passed: x == 17 for: 17 == 17
InternalBenchmark.tests.cpp:<line number>: passed: x == 23 for: 23 == 23
@@ -1990,6 +1995,29 @@ InternalBenchmark.tests.cpp:<line number>: passed: e.point == 23 for: 23.0 == 23
InternalBenchmark.tests.cpp:<line number>: passed: e.upper_bound == 23 for: 23.0 == 23
InternalBenchmark.tests.cpp:<line number>: passed: e.lower_bound == 23 for: 23.0 == 23
InternalBenchmark.tests.cpp:<line number>: passed: e.confidence_interval == 0.95 for: 0.95 == 0.95
UniquePtr.tests.cpp:<line number>: passed: !(ptr) for: !{?}
UniquePtr.tests.cpp:<line number>: passed: ptr.get() == 0 for: 0 == 0
UniquePtr.tests.cpp:<line number>: passed: ptr for: {?}
UniquePtr.tests.cpp:<line number>: passed: *ptr == 0 for: 0 == 0
UniquePtr.tests.cpp:<line number>: passed: ptr.get() == naked_ptr for: 0x<hex digits> == 0x<hex digits>
UniquePtr.tests.cpp:<line number>: passed: !(ptr) for: !{?}
UniquePtr.tests.cpp:<line number>: passed: ptr.get() == 0 for: 0 == 0
UniquePtr.tests.cpp:<line number>: passed: ptr for: {?}
UniquePtr.tests.cpp:<line number>: passed: *ptr == 0 for: 0 == 0
UniquePtr.tests.cpp:<line number>: passed: ptr.get() == naked_ptr for: 0x<hex digits> == 0x<hex digits>
UniquePtr.tests.cpp:<line number>: passed: ptr for: {?}
UniquePtr.tests.cpp:<line number>: passed: ptr.get() != 0 for: 0x<hex digits> != 0
UniquePtr.tests.cpp:<line number>: passed: *ptr == 2 for: 2 == 2
UniquePtr.tests.cpp:<line number>: passed: !(ptr) for: !{?}
UniquePtr.tests.cpp:<line number>: passed: ptr.get() == 0 for: 0 == 0
UniquePtr.tests.cpp:<line number>: passed: !(ptr1) for: !{?}
UniquePtr.tests.cpp:<line number>: passed: ptr2 for: {?}
UniquePtr.tests.cpp:<line number>: passed: *ptr2 == 1 for: 1 == 1
UniquePtr.tests.cpp:<line number>: passed: !(ptr2) for: !{?}
UniquePtr.tests.cpp:<line number>: passed: ptr1 for: {?}
UniquePtr.tests.cpp:<line number>: passed: *ptr1 == 2 for: 2 == 2
UniquePtr.tests.cpp:<line number>: passed: *ptr1 == 2 for: 2 == 2
UniquePtr.tests.cpp:<line number>: passed: *ptr2 == 1 for: 1 == 1
ToStringVector.tests.cpp:<line number>: passed: ::Catch::Detail::stringify(v) == "{ }" for: "{ }" == "{ }"
ToStringVector.tests.cpp:<line number>: passed: ::Catch::Detail::stringify(v) == "{ { \"hello\" }, { \"world\" } }" for: "{ { "hello" }, { "world" } }"
==