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util: Make Assume() usable as unary expression

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MarcoFalke 2021-02-28 16:38:19 +01:00
parent d099894ec1
commit fa4cebadcf
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2 changed files with 4 additions and 1 deletions
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3
src/test/util_tests.cpp
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@ -76,6 +76,9 @@ BOOST_AUTO_TEST_CASE(util_check)
const int two = *Assert(p_two); const int two = *Assert(p_two);
Assert(two == 2); Assert(two == 2);
Assert(true); Assert(true);
// Check that Assume can be used as unary expression
const bool result{Assume(two == 2)};
Assert(result);
} }
BOOST_AUTO_TEST_CASE(util_criticalsection) BOOST_AUTO_TEST_CASE(util_criticalsection)

2
src/util/check.h
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@ -69,7 +69,7 @@ T get_pure_r_value(T&& val)
#ifdef ABORT_ON_FAILED_ASSUME #ifdef ABORT_ON_FAILED_ASSUME
#define Assume(val) Assert(val) #define Assume(val) Assert(val)
#else #else
#define Assume(val) ((void)(val)) #define Assume(val) ([&]() -> decltype(get_pure_r_value(val)) { auto&& check = (val); return std::forward<decltype(get_pure_r_value(val))>(check); }())
#endif #endif
#endif // BITCOIN_UTIL_CHECK_H #endif // BITCOIN_UTIL_CHECK_H