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Changes imported from Abseil "staging" branch:

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- 95e20a66bfa6104937ec92722b04a9c0ca0443dc Make ThrowingBool convertible to bool. by Xiaoyi Zhang <zhangxy@google.com>

GitOrigin-RevId: 95e20a66bfa6104937ec92722b04a9c0ca0443dc
Change-Id: I7a1dcb53b0764b24482ee1886276b267c8cb83c2
This commit is contained in:
Abseil Team 2018-03-15 13:48:55 -07:00 • committed by Alex Strelnikov
parent 2661ed4998
commit eed36bfba0
2 changed files with 18 additions and 3 deletions
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8
absl/base/internal/exception_safety_testing.h
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@ -203,12 +203,12 @@ extern exceptions_internal::NoThrowTag no_throw_ctor;
inline void SetCountdown() { exceptions_internal::countdown = 0; }
inline void UnsetCountdown() { exceptions_internal::countdown = -1; }
// A test class which is contextually convertible to bool. The conversion can
// be instrumented to throw at a controlled time.
// A test class which is convertible to bool. The conversion can be
// instrumented to throw at a controlled time.
class ThrowingBool {
public:
ThrowingBool(bool b) noexcept : b_(b) {} // NOLINT(runtime/explicit)
explicit operator bool() const {
operator bool() const { // NOLINT(runtime/explicit)
exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);
return b_;
}
@ -355,6 +355,8 @@ class ThrowingValue : private exceptions_internal::TrackedObject {
}
// Comparison Operators
// NOTE: We use `ThrowingBool` instead of `bool` because most STL
// types/containers requires T to be convertible to bool.
friend ThrowingBool operator==(const ThrowingValue& a,
const ThrowingValue& b) {
exceptions_internal::MaybeThrow(ABSL_PRETTY_FUNCTION);