std::numpunct<CharT>::decimal_point,do_decimal_point (3) - Linux Manuals

std::numpunct<CharT>::decimal_point,do_decimal_point: std::numpunct<CharT>::decimal_point,do_decimal_point

NAME

std::numpunct<CharT>::decimal_point,do_decimal_point - std::numpunct<CharT>::decimal_point,do_decimal_point

Synopsis

Defined in header <locale>
public: (1)
char_type decimal_point() const;
protected: (2)
virtual char_type do_decimal_point() const;

1) Public member function, calls the member function do_decimal_point of the most derived class.
2) Returns the character to be used as the decimal separator between integer and fractional parts.

Return value

The value of type char_type to use as the decimal separator. The standard specializations of std::numpunct return '.' and L'.'.

Example

// Run this code

  #include <iostream>
  #include <locale>

  struct slash : std::numpunct<char> {
      char do_decimal_point() const { return '/'; } // separate with slash
  };

  int main()
  {
      std::cout.precision(10);
      std::cout << "default locale: " << 1234.5678 << '\n';
      std::cout.imbue(std::locale(std::cout.getloc(), new slash));
      std::cout << "locale with modified numpunct: " << 1234.5678 << '\n';
  }

Output:

  default locale: 1234.5678
  locale with modified numpunct: 1234/5678