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I'm using transform algorithm and std::toupper to achieve this, but can this be done in one line, like this ?
transform(s.begin(), s.end(), ostream_iterator<string>(cout, "\n"),std::toupper);
I get error on this, so do I have to make a unary function for this and call it with transform or I can use some adaptors ?
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The toUpperCase() method converts a string to upper case letters.
C++ String has got built-in toupper() function to convert the input String to Uppercase.
The strtoupper() function converts a string to uppercase.
If lowercase, convert it to uppercase using toupper() function, if uppercase, convert it to lowercase using tolower() function.
Use ostream_iterator<char> instead of ostream_iterator<string>:
transform(s.begin(),s.end(),ostream_iterator<char>(cout,"\n"),std::toupper);
std::transform transforms each character and pass it to the output iterator. That is why the type argument of the output iterator should be char instead of std::string.
By the way, each character will be printed on a newline. Is that what you want? If not, don't pass "\n".
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Note : You may have to use ::toupper instead of std::toupper.
See these
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