std::numeric_limits<T>::max_digits10
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The value of Template:c is the number of base-10 digits that are necessary to uniquely represent all distinct values of the type Template:tt, such as necessary for serialization/deserialization to text. This constant is meaningful for all floating-point types.
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[edit] Standard specializations
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[edit] Notes
Unlike most mathematical operations, the conversion of a floating-point value to text and back is exact as long as at least Template:tt were used (Template:c for Template:c/core, Template:c for Template:c/core): it is guaranteed to produce the same floating-point value, even though the intermediate text representation is not exact. It may take over a hundred decimal digits to represent the precise value of a Template:c/core in decimal notation.
[edit] Example
[edit] See also
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