std:: chars_format

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Utilities library
General utilities
Relational operators (deprecated in C++20)
Defined in header <charconv>
enum class chars_format {

scientific = /*unspecified*/ ,
fixed = /*unspecified*/ ,
hex = /*unspecified*/ ,
general = fixed | scientific

} ;
(since C++17)

A BitmaskType used to specify floating-point formatting for std::to_chars and std::from_chars .

Notes

Feature-test macro Value Std Feature
__cpp_lib_to_chars 201611L (C++17) Elementary string conversions ( std::to_chars , std::from_chars )

Example

See also

(C++17)
converts an integer or floating-point value to a character sequence
(function)
(C++17)
converts a character sequence to an integer or floating-point value
(function)