icu4c/source/test/fuzzer/number_format_fuzzer.cc

// © 2019 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html

// Fuzzer for NumberFormat::parse.

#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "fuzzer_utils.h"
#include "unicode/numfmt.h"

IcuEnvironment* env = new IcuEnvironment();

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  UErrorCode status = U_ZERO_ERROR;

  auto rng = CreateRng(data, size);
  const icu::Locale& locale = GetRandomLocale(&rng);

  std::unique_ptr<icu::NumberFormat> fmt(
      icu::NumberFormat::createInstance(locale, status));
  if (U_FAILURE(status)) return 0;

  icu::UnicodeString str(UnicodeStringFromUtf8(data, size));
  icu::Formattable result;
  fmt->parse(str, result, status);

  return 0;
}