Write a void function called "OnlyUppercase" IN C++ that has only two parameters, a reference to a istringstream and a reference to an ostring stream. This function should read whitespace separated words from the first argument and write those words (each with a trailing newline character) to the second argument. However, only the words that are composed solely of UPPERCASE letters should be written to the second argument

Example input and output:

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INPUT OF THE TEST CASE #include but NOT! This"); std::istringstream iss("WORD AND ANOTHER std::ostringstream oss; OnlyUppercase (iss, oss); ASSERT_EQ(oss.str(), "WORD AND ANOTHER "); - 0 std::istringstream iss_2(" Many Words THAT ONLY SOME SHOULD Be -ADDED"); std::ostringstream oss_2; OnlyUppercase (iss_2, oss_2); ASSERT_EQ (oss_2.str(), "THAT SHOULD "); 10 11