Q:

To convert the whole string we need to call toupper on each character and put the result back in that character

KasimKamal
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2022-07-04
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To convert the whole string we need to call toupper on each character and put the result back in that character.

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KasimKamal
2022-07-04
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string s("Hello World!!!");
// convert s to uppercase
for (auto &c : s) // for every char in s (note: c is a reference)
c = toupper(c); // c is a reference, so the assignment changes the char in s
cout << s << endl;

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