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Apply clang format and other minor formatting tweaks

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Victor Zverovich
2019-06-30 08:52:15 -07:00
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# FMT Fuzzer
Fuzzing has revealed [several bugs](https://github.com/fmtlib/fmt/issues?&q=is%3Aissue+fuzz) in fmt. It is a part of the continous fuzzing at [oss-fuzz](https://github.com/google/oss-fuzz)
The source code is modified to make the fuzzing possible without locking up on resource exhaustion:
Fuzzing has revealed [several bugs](https://github.com/fmtlib/fmt/issues?&q=is%3Aissue+fuzz)
in fmt. It is a part of the continous fuzzing at
[oss-fuzz](https://github.com/google/oss-fuzz).
The source code is modified to make the fuzzing possible without locking up on
resource exhaustion:
```cpp
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
if(spec.precision>100000) {
throw std::runtime_error("fuzz mode - avoiding large precision");
throw std::runtime_error("fuzz mode - avoiding large precision");
}
#endif
```
This macro is the defacto standard for making fuzzing practically possible, see [the libFuzzer documentation](https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode).
This macro is the defacto standard for making fuzzing practically possible, see
[the libFuzzer documentation](https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode).
## Running the fuzzers locally
There is a [helper script](build.sh) to build the fuzzers, which has only been tested on Debian and Ubuntu linux so far. There should be no problems fuzzing on Windows (using clang>=8) or on Mac, but the script will probably not work out of the box.
There is a [helper script](build.sh) to build the fuzzers, which has only been
tested on Debian and Ubuntu linux so far. There should be no problems fuzzing on
Windows (using clang>=8) or on Mac, but the script will probably not work out of
the box.
Something along
```sh