std::to_wstring
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
#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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