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std::chars_format

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)

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