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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <cctype>
  4. using namespace std;
  5.  
  6. int main()
  7. {
  8.     char test[] = "TEST";
  9.     cout << "Before: " << test << endl;
  10.     transform(test, test+4, test, [](char ch){ return tolower(ch); });
  11.     cout << "After: " << test << endl;
  12.     return 0;
  13. }
Success #stdin #stdout 0s 4504KB
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stdin
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Standard input is empty
stdout
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Before: TEST
After: test
https://ideone.com/vrXUbM
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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