Function byte_to_hex

lib/cpp/src/thrift/protocol/TDebugProtocol.cpp:30–37

using std::string;

static string byte_to_hex(const uint8_t byte) {
  char buf[3];
  int ret = std::sprintf(buf, "%02x", (int)byte);
  THRIFT_UNUSED_VARIABLE(ret);
  assert(ret == 2);
  assert(buf[2] == '\0');
  return buf;
}

namespace apache {
namespace thrift {