Function std::num::strconv::float_to_str_bytes_commonExperimental

pub fn float_to_str_bytes_common<T: Float>(num: T, radix: uint, negative_zero: bool, sign: SignFormat, digits: SignificantDigits, exp_format: ExponentFormat, exp_upper: bool) -> (Vec<u8>, bool)

Converts a number to its string representation as a byte vector. This is meant to be a common base implementation for all numeric string conversion functions like to_string() or to_str_radix().

Arguments

• num - The number to convert. Accepts any number that implements the numeric traits.
• radix - Base to use. Accepts only the values 2-36. If the exponential notation is used, then this base is only used for the significand. The exponent itself always printed using a base of 10.
• negative_zero - Whether to treat the special value -0 as -0 or as +0.
• sign - How to emit the sign. See SignFormat.
• digits - The amount of digits to use for emitting the fractional part, if any. See SignificantDigits.
• exp_format - Whether or not to use the exponential (scientific) notation. See ExponentFormat.
• exp_capital - Whether or not to use a capital letter for the exponent sign, if exponential notation is desired.

Return value

A tuple containing the byte vector, and a boolean flag indicating whether it represents a special value like inf, -inf, NaN or not. It returns a tuple because there can be ambiguity between a special value and a number representation at higher bases.

Panics

• Panics if radix < 2 or radix > 36.
• Panics if radix > 14 and exp_format is ExpDec due to conflict between digit and exponent sign 'e'.
• Panics if radix > 25 and exp_format is ExpBin due to conflict between digit and exponent sign 'p'.