Mercurial > hg
view contrib/fuzz/fuzzutil.h @ 38174:36d55f90e2a3
fuzzutil: make it possible to use absl when C++17 isn't supported
Differential Revision: https://phab.mercurial-scm.org/D3676
author | Augie Fackler <augie@google.com> |
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date | Mon, 30 Apr 2018 22:02:07 -0400 |
parents | fa0ddd5e8fff |
children | 6f5c352f41b6 |
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#ifndef CONTRIB_FUZZ_FUZZUTIL_H #define CONTRIB_FUZZ_FUZZUTIL_H #include <iostream> #include <memory> #include <stdint.h> /* Try and use std::optional, but failing that assume we'll have a * workable https://abseil.io/ install on the include path to get * their backport of std::optional. */ #ifdef __has_include #if __has_include(<optional>) && __cplusplus >= 201703L #include <optional> #define CONTRIB_FUZZ_HAVE_STD_OPTIONAL #endif #endif #ifdef CONTRIB_FUZZ_HAVE_STD_OPTIONAL namespace contrib { using std::nullopt; using std::optional; } /* namespace contrib */ #else #include "third_party/absl/types/optional.h" namespace contrib { using absl::nullopt; using absl::optional; } /* namespace contrib */ #endif /* set DEBUG to 1 for a few debugging prints, or 2 for a lot */ #define DEBUG 0 #define LOG(level) \ if (level <= DEBUG) \ std::cout struct two_inputs { std::unique_ptr<char[]> right; size_t right_size; std::unique_ptr<char[]> left; size_t left_size; }; /* Split a non-zero-length input into two inputs. */ contrib::optional<two_inputs> SplitInputs(const uint8_t *Data, size_t Size); #endif /* CONTRIB_FUZZ_FUZZUTIL_H */