Function ToUpper

src/util/strencodings.h:313–316

* Converts the given character to its uppercase equivalent. * This function is locale independent. It only converts lowercase * characters in the standard 7-bit ASCII range. * This is a feature, not a limitation. * * @param[in] c the character to convert to uppercase. * @return the uppercase equivalent of c; or the argument * if no conversion is possible. */

 *                  if no conversion is possible.
 */
constexpr char ToUpper(char c)
{
    return (c >= 'a' && c <= 'z' ? (c - 'a') + 'A' : c);
}

/**
 * Returns the uppercase equivalent of the given string.