diff options
Diffstat (limited to 'src/util/check.h')
| -rw-r--r-- | src/util/check.h | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/util/check.h b/src/util/check.h index 9edf394492..bc62da3440 100644 --- a/src/util/check.h +++ b/src/util/check.h @@ -1,4 +1,4 @@ -// Copyright (c) 2019 The Bitcoin Core developers +// Copyright (c) 2019-2020 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. @@ -46,7 +46,7 @@ class NonFatalCheckError : public std::runtime_error #error "Cannot compile without assertions!" #endif -/** Helper for Assert(). TODO remove in C++14 and replace `decltype(get_pure_r_value(val))` with `T` (templated lambda) */ +/** Helper for Assert() */ template <typename T> T get_pure_r_value(T&& val) { @@ -54,6 +54,22 @@ T get_pure_r_value(T&& val) } /** Identity function. Abort if the value compares equal to zero */ -#define Assert(val) [&]() -> decltype(get_pure_r_value(val)) { auto&& check = (val); assert(#val && check); return std::forward<decltype(get_pure_r_value(val))>(check); }() +#define Assert(val) ([&]() -> decltype(get_pure_r_value(val)) { auto&& check = (val); assert(#val && check); return std::forward<decltype(get_pure_r_value(val))>(check); }()) + +/** + * Assume is the identity function. + * + * - Should be used to run non-fatal checks. In debug builds it behaves like + * Assert()/assert() to notify developers and testers about non-fatal errors. + * In production it doesn't warn or log anything. + * - For fatal errors, use Assert(). + * - For non-fatal errors in interactive sessions (e.g. RPC or command line + * interfaces), CHECK_NONFATAL() might be more appropriate. + */ +#ifdef ABORT_ON_FAILED_ASSUME +#define Assume(val) Assert(val) +#else +#define Assume(val) ((void)(val)) +#endif #endif // BITCOIN_UTIL_CHECK_H |