| 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.
Example
#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
See also
| (C++11) | converts an integral or floating point value to string (function) |
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