Function CheckedNegation

internal/overflow.cc:104–115

}

absl::StatusOr<int64_t> CheckedNegation(int64_t v) {
#if ABSL_HAVE_BUILTIN(__builtin_mul_overflow)
  int64_t prod;
  if (!__builtin_mul_overflow(v, -1, &prod)) {
    return prod;
  }
  return absl::OutOfRangeError("integer overflow");
#else
  CEL_RETURN_IF_ERROR(CheckRange(v != kInt64Min, "integer overflow"));
  return -v;
#endif
}

absl::StatusOr<int64_t> CheckedMul(int64_t x, int64_t y) {
#if ABSL_HAVE_BUILTIN(__builtin_mul_overflow)