Method returnString

perftest/handwritten-src/cpp/DjinniPerfBenchmarkImpl.cpp:58–66

// so that the construction cost is only paid by the first run.

std::string DjinniPerfBenchmarkImpl::returnString(int32_t size) {
    static int32_t cachedReturnValueSize;
    static std::string cachedReturnValue;
    if (size != cachedReturnValueSize) {
        cachedReturnValue = std::string(size, '@');
        cachedReturnValueSize = size;
    }
    return cachedReturnValue;
}

std::vector<uint8_t> DjinniPerfBenchmarkImpl::returnBinary(int32_t size) {
    static int32_t cachedReturnValueSize;