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Export of internal Abseil changes.

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7fb969986d7d5a1b30233a94ae7ea29e1abf8937 by Greg Falcon <gfalcon@google.com>:

Fix whitespace in str_join.h.

PiperOrigin-RevId: 208082852

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85428003a8a29fbcd92c0b48708a69460eeb0e8f by Abseil Team <absl-team@google.com>:

Add missing back-ticks to the comments.

PiperOrigin-RevId: 207985417

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0bbac248d5649ac1d7bc71ff1025a11332fb2026 by Abseil Team <absl-team@google.com>:

Internal change.

PiperOrigin-RevId: 207927484

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f587324b99570b403b4626fb03fce16f0d950b05 by Abseil Team <absl-team@google.com>:

Update BaseCountedInstance to have comparison operators and allow them to be tracked by InstanceTracker.

PiperOrigin-RevId: 207919218

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d7f410e4f15328412941f16e25ba3735d5bdfda6 by Derek Mauro <dmauro@google.com>:

Internal import of GitHub PR #153
Removed "warning treated as error" flag from MSVC

PiperOrigin-RevId: 207908806

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59eefc78f8571ffc51cb636894015ce2580508d7 by Abseil Team <absl-team@google.com>:

Fix namespace references in examples from 'std::' to 'absl::'.

PiperOrigin-RevId: 207895230

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151df17b6544222e29913b034a1296c0e14374d5 by Abseil Team <absl-team@google.com>:

Internal Change

PiperOrigin-RevId: 207894949
GitOrigin-RevId: 7fb969986d7d5a1b30233a94ae7ea29e1abf8937
Change-Id: I00097afbe9610ddb3f2330a2a86dcffde7bb6675
This commit is contained in:
Abseil Team 2018-08-09 11:32:15 -07:00 • committed by Derek Mauro
parent 29ff6d4860
commit f0f15c2778
12 changed files with 103 additions and 10 deletions
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52
absl/container/internal/test_instance_tracker.h
View file

@ -22,8 +22,8 @@ namespace absl {
namespace test_internal {
// A type that counts number of occurences of the type, the live occurrences of
// the type, as well as the number of copies, moves, and swaps that have
// occurred on the type. This is used as a base class for the copyable,
// the type, as well as the number of copies, moves, swaps, and comparisons that
// have occurred on the type. This is used as a base class for the copyable,
// copyable+movable, and movable types below that are used in actual tests. Use
// InstanceTracker in tests to track the number of instances.
class BaseCountedInstance {
@ -66,6 +66,36 @@ class BaseCountedInstance {
return *this;
}
bool operator==(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ == x.value_;
}
bool operator!=(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ != x.value_;
}
bool operator<(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ < x.value_;
}
bool operator>(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ > x.value_;
}
bool operator<=(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ <= x.value_;
}
bool operator>=(const BaseCountedInstance& x) const {
++num_comparisons_;
return value_ >= x.value_;
}
int value() const {
if (!is_live_) std::abort();
return value_;
@ -108,6 +138,9 @@ class BaseCountedInstance {
// Number of times that BaseCountedInstance objects were swapped.
static int num_swaps_;
// Number of times that BaseCountedInstance objects were compared.
static int num_comparisons_;
};
// Helper to track the BaseCountedInstance instance counters. Expects that the
@ -152,13 +185,21 @@ class InstanceTracker {
// construction or the last call to ResetCopiesMovesSwaps().
int swaps() const { return BaseCountedInstance::num_swaps_ - start_swaps_; }
// Resets the base values for moves, copies and swaps to the current values,
// so that subsequent Get*() calls for moves, copies and swaps will compare to
// the situation at the point of this call.
// Returns the number of comparisons on BaseCountedInstance objects since
// construction or the last call to ResetCopiesMovesSwaps().
int comparisons() const {
return BaseCountedInstance::num_comparisons_ - start_comparisons_;
}
// Resets the base values for moves, copies, comparisons, and swaps to the
// current values, so that subsequent Get*() calls for moves, copies,
// comparisons, and swaps will compare to the situation at the point of this
// call.
void ResetCopiesMovesSwaps() {
start_moves_ = BaseCountedInstance::num_moves_;
start_copies_ = BaseCountedInstance::num_copies_;
start_swaps_ = BaseCountedInstance::num_swaps_;
start_comparisons_ = BaseCountedInstance::num_comparisons_;
}
private:
@ -167,6 +208,7 @@ class InstanceTracker {
int start_moves_;
int start_copies_;
int start_swaps_;
int start_comparisons_;
};
// Copyable, not movable.