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  1. #include <iostream>
  2. #include <string>
  3. #include <locale>
  4.  
  5. int main()
  6. {
  7.     std::string str = "I am a string";
  8.     std::use_facet< std::ctype<char> >(std::locale()).toupper(&str[0], &str[0] + str.size());
  9.     std::cout << str << '\n';
  10. }
  11.  
Success #stdin #stdout 0s 3028KB
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stdin
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Standard input is empty
stdout
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I AM A STRING
https://ideone.com/uPthJI
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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