Function encode_float_double_ibm_hex 

pub fn encode_float_double_ibm_hex(value: f64, buffer: &mut [u8]) -> Result<()>

Encode a COMP-2 value in IBM hexadecimal floating-point format.

Errors

Returns:

• CBKE510_NUMERIC_OVERFLOW if the buffer is too small
• CBKE510_NUMERIC_OVERFLOW for non-finite values or exponent overflow