std::to_wstring (3) - Linux Manuals

std::to_wstring: std::to_wstring

NAME

std::to_wstring - std::to_wstring

Synopsis

Defined in header <string>
std::wstring to_wstring( int value ); (1) (since C++11)
std::wstring to_wstring( long value ); (2) (since C++11)
std::wstring to_wstring( long long value ); (3) (since C++11)
std::wstring to_wstring( unsigned value ); (4) (since C++11)
std::wstring to_wstring( unsigned long value ); (5) (since C++11)
std::wstring to_wstring( unsigned long long value ); (6) (since C++11)
std::wstring to_wstring( float value ); (7) (since C++11)
std::wstring to_wstring( double value ); (8) (since C++11)
std::wstring to_wstring( long double value ); (9) (since C++11)

Converts a numeric value to std::wstring.
1) Converts a signed decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%d", value) would produce for sufficiently large buf.
2) Converts a signed decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%ld", value) would produce for sufficiently large buf..
3) Converts a signed decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%lld", value) would produce for sufficiently large buf.
4) Converts an unsigned decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%u", value) would produce for sufficiently large buf.
5) Converts an unsigned decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%lu", value) would produce for sufficiently large buf.
6) Converts an unsigned decimal integer to a wide string with the same content as what std::swprintf(buf, sz, L"%llu", value) would produce for sufficiently large buf.
7,8) Converts a floating point value to a wide string with the same content as what std::swprintf(buf, sz, L"%f", value) would produce for sufficiently large buf.
9) Converts a floating point value to a wide string with the same content as what std::swprintf(buf, sz, L"%Lf", value) would produce for sufficiently large buf.

Parameters

value - a numeric value to convert

Return value

a wide string holding the converted value

Exceptions

May throw std::bad_alloc from the std::wstring constructor.

Example

// Run this code

  #include <string>
  #include <iostream>

  int main() {
      double f = 23.43;

    std::wstring f_str = std::to_wstring(f);
    std::wcout << f_str;
}

Output:

  23.430000