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Now that googletest has moved to C++11, it should no longer
use NULL or 0 for the null pointer. This patch converts all
such usages to nullptr using clang-tidy.

This prevents LLVM from issuing -Wzero-as-null-pointer-constant
warnings.

PiperOrigin-RevId: 215814400

Project import generated by Copybara.

PiperOrigin-RevId: 214456152

Project import generated by Copybara.

PiperOrigin-RevId: 214441835

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Including recently accepted and merged PRs

PiperOrigin-RevId: 213856848

Shorten lines in unit tests

support printing std::reference_wrapper<T> in gUnit

PiperOrigin-RevId: 213270392

Removing checks for C++11 from unit tests

PiperOrigin-RevId: 212990514

Project import generated by Copybara.

PiperOrigin-RevId: 212678005

Internal Change

PiperOrigin-RevId: 212656679

The unused attribute was removed with commit 3299a238 on 2018-02-23, but it currently breaks build of 1.8.1, because of -Werror GCC parameter as reported in issue #1825.

Make EXPECT_THROW print the actual exception type on the "threw the wrong exception type" case if the actual exception is a std::exception

PiperOrigin-RevId: 211524592

Make EXPECT_THROW print the actual exception type on the "threw the wrong exception type" case if the actual exception is a std::exception

PiperOrigin-RevId: 211519873

Breaks Windows builds

PiperOrigin-RevId: 210434120

Fix Theta(N^2) memory usage of EXPECT_EQ(string) when the strings don't match.

The underlying CalculateOptimalEdits() implementation used a simple
dynamic-programming approach that always used N^2 memory and time. This meant
that tests for equality of large strings were ticking time bombs: They'd work
fine as long as the test passed, but as soon as the strings differed the test
would OOM, which is very hard to debug.
I switched it out for a Dijkstra search, which is still worst-case O(N^2), but
in the usual case of mostly-matching strings, it is much closer to linear.

PiperOrigin-RevId: 210405025

Closes #1658

Review and changes, mister@google.com

PiperOrigin-RevId: 210374286

Internal Change

PiperOrigin-RevId: 209498445

Internal Change

PiperOrigin-RevId: 209471987

Comments changes, no functionality changes. 

Comments changes, no functionality changes

cleaning up and adding test changes to CMake

Formatting changes, code sync

Fix the bug where ad_hoc_test_result() functions of UnitTest and TestCase objects would return failures registered at TestCase and UnitTest scopes, respectively.

Upstreaming, cl 191344765